diff --git a/code/__DEFINES/clothing.dm b/code/__DEFINES/clothing.dm
index 1d87f8845c8..69561ee97ef 100644
--- a/code/__DEFINES/clothing.dm
+++ b/code/__DEFINES/clothing.dm
@@ -88,3 +88,8 @@
 #define BLOCKHAIR				32768	// temporarily removes the user's hair, facial and otherwise.
 
 #define ONESIZEFITSALL 			1		// determines if something can be worn by a fatty or not.
+
+//flags for muzzle speech blocking
+#define MUTE_NONE 0 // Does not mute you.
+#define MUTE_MUFFLE 1 // Muffles everything you say "MHHPHHMMM!!!
+#define MUTE_ALL 2 // Completely mutes you.
\ No newline at end of file
diff --git a/code/game/gamemodes/vampire/vampire.dm b/code/game/gamemodes/vampire/vampire.dm
index 94b75646bf5..1923a0e1321 100644
--- a/code/game/gamemodes/vampire/vampire.dm
+++ b/code/game/gamemodes/vampire/vampire.dm
@@ -275,6 +275,10 @@ You are weak to holy things and starlight. Don't go into space and avoid the Cha
 	var/blood = 0
 	var/old_bloodtotal = 0 //used to see if we increased our blood total
 	var/old_bloodusable = 0 //used to see if we increased our blood usable
+	var/muzzle = H.is_muzzled()
+	if(muzzle)
+		to_chat(owner, "<span class='warning'>[muzzle] prevents you from biting [H]!</span>")
+		return
 	owner.create_attack_log("<font color='red'>Bit [H] ([H.ckey]) in the neck and draining their blood</font>")
 	H.create_attack_log("<font color='orange'>Has been bit in the neck by [owner] ([owner.ckey])</font>")
 	log_attack("[owner] ([owner.ckey]) bit [H] ([H.ckey]) in the neck")
diff --git a/code/game/machinery/vending.dm b/code/game/machinery/vending.dm
index 5b1211a7394..dadfad2985a 100644
--- a/code/game/machinery/vending.dm
+++ b/code/game/machinery/vending.dm
@@ -951,7 +951,8 @@
 	icon_deny = "sec-deny"
 	req_access_txt = "1"
 	products = list(/obj/item/weapon/restraints/handcuffs = 8,/obj/item/weapon/restraints/handcuffs/cable/zipties = 8,/obj/item/weapon/grenade/flashbang = 4,/obj/item/device/flash = 5,
-					/obj/item/weapon/reagent_containers/food/snacks/donut = 12,/obj/item/weapon/storage/box/evidence = 6,/obj/item/device/flashlight/seclite = 4,/obj/item/weapon/restraints/legcuffs/bola/energy = 7)
+					/obj/item/weapon/reagent_containers/food/snacks/donut = 12,/obj/item/weapon/storage/box/evidence = 6,/obj/item/device/flashlight/seclite = 4,/obj/item/weapon/restraints/legcuffs/bola/energy = 7,
+					/obj/item/clothing/mask/muzzle/safety = 4)
 	contraband = list(/obj/item/clothing/glasses/sunglasses = 2,/obj/item/weapon/storage/fancy/donut_box = 2,/obj/item/device/hailer = 5)
 
 /obj/machinery/vending/hydronutrients
diff --git a/code/modules/clothing/masks/miscellaneous.dm b/code/modules/clothing/masks/miscellaneous.dm
index 8b0bb40597e..fffd9453f7a 100644
--- a/code/modules/clothing/masks/miscellaneous.dm
+++ b/code/modules/clothing/masks/miscellaneous.dm
@@ -8,7 +8,9 @@
 	gas_transfer_coefficient = 0.90
 	put_on_delay = 20
 	var/resist_time = 0 //deciseconds of how long you need to gnaw to get rid of the gag, 0 to make it impossible to remove
-	var/mute = 1 // 1 - completely mutes you, 0 - muffles everything you say "MHHPHHMMM!!!"
+	var/mute = MUTE_ALL
+	var/security_lock = FALSE // Requires brig access to remove 0 - Remove as normal
+	var/locked = FALSE //Indicates if a mask is locked, should always start as 0.
 	species_fit = list("Vox")
 	sprite_sheets = list(
 		"Vox" = 'icons/mob/species/vox/mask.dmi'
@@ -18,7 +20,65 @@
 /obj/item/clothing/mask/muzzle/attack_hand(mob/user as mob)
 	if(user.wear_mask == src && !user.IsAdvancedToolUser())
 		return 0
+	else if(security_lock && locked)
+		if(do_unlock(user))
+			visible_message("<span class='danger'>[user] unlocks their [src.name].</span>", \
+								"<span class='userdanger'>[user] unlocks their [src.name].</span>")
 	..()
+	return 1
+
+/obj/item/clothing/mask/muzzle/proc/do_break()
+	if(security_lock)
+		security_lock = FALSE
+		locked = FALSE
+		flags &= ~NODROP
+		desc += " This one appears to be broken."
+		return TRUE
+	else
+		return FALSE
+
+/obj/item/clothing/mask/muzzle/proc/do_unlock(mob/living/carbon/human/user)
+	if(istype(user.get_inactive_hand(), /obj/item/weapon/card/emag))
+		to_chat(user, "<span class='warning'>The lock vibrates as the card forces its locking system open.</span>")
+		do_break()
+		return TRUE
+	else if(access_brig in user.get_access())
+		to_chat(user, "<span class='warning'>The muzzle unlocks with a click.</span>")
+		locked = FALSE
+		flags &= ~NODROP
+		return TRUE
+
+	to_chat(user, "<span class='warning'>You must be wearing a security ID card or have one in your inactive hand to remove the muzzle.</span>")
+	return FALSE
+
+/obj/item/clothing/mask/muzzle/proc/do_lock(mob/living/carbon/human/user)
+	if(security_lock)
+		locked = TRUE
+		flags |= NODROP
+		return TRUE
+	return FALSE
+
+/obj/item/clothing/mask/muzzle/Topic(href, href_list)
+	..()
+	if(href_list["locked"])
+		var/mob/living/carbon/wearer = locate(href_list["locked"])
+		var/success = 0
+		if(ishuman(usr))
+			visible_message("<span class='danger'>[usr] tries to [locked ? "unlock" : "lock"] [wearer]'s [name].</span>", \
+							"<span class='userdanger'>[usr] tries to [locked ? "unlock" : "lock"] [wearer]'s [name].</span>")
+			if(do_mob(usr, wearer, POCKET_STRIP_DELAY))
+				if(locked)
+					success = do_unlock(usr)
+				else
+					success = do_lock(usr)
+			if(success)
+				visible_message("<span class='danger'>[usr] [locked ? "locks" : "unlocks"] [wearer]'s [name].</span>", \
+									"<span class='userdanger'>[usr] [locked ? "locks" : "unlocks"] [wearer]'s [name].</span>")
+				if(usr.machine == wearer && in_range(src, usr))
+					wearer.show_inv(usr)
+		else
+			to_chat(usr, "You lack the ability to manipulate the lock.")
+
 
 /obj/item/clothing/mask/muzzle/gag
 	name = "gag"
@@ -33,7 +93,7 @@
 	item_state = null
 	w_class = WEIGHT_CLASS_TINY
 	resist_time = 150
-	mute = 0
+	mute = MUTE_MUFFLE
 	species_fit = list("Vox", "Unathi", "Tajaran", "Vulpkanin", "Grey")
 	sprite_sheets = list(
 		"Vox" = 'icons/mob/species/vox/mask.dmi',
@@ -53,6 +113,14 @@
 		qdel(src) // This makes sure it gets deleted AFTER all that has to be done is done.
 		user.emote("scream")
 
+/obj/item/clothing/mask/muzzle/safety
+	name = "safety muzzle"
+	desc = "A muzzle designed to prevent biting."
+	mute = MUTE_NONE
+	security_lock = TRUE
+	locked = FALSE
+
+
 /obj/item/clothing/mask/surgical
 	name = "sterile mask"
 	desc = "A sterile mask designed to help prevent the spread of diseases."
diff --git a/code/modules/mob/living/carbon/alien/special/facehugger.dm b/code/modules/mob/living/carbon/alien/special/facehugger.dm
index 2f489f3ea2d..5294e3bda91 100644
--- a/code/modules/mob/living/carbon/alien/special/facehugger.dm
+++ b/code/modules/mob/living/carbon/alien/special/facehugger.dm
@@ -135,6 +135,11 @@ var/const/MAX_ACTIVE_TIME = 400
 		if(target.wear_mask)
 			if(prob(20))
 				return 0
+			if(istype(target.wear_mask, /obj/item/clothing/mask/muzzle))
+				var/obj/item/clothing/mask/muzzle/S = target.wear_mask
+				if(S.do_break())
+					target.visible_message("<span class='danger'>[src] spits acid onto [S] melting the lock!</span>", \
+									"<span class='userdanger'>[src] spits acid onto [S] melting the lock!</span>")
 			var/obj/item/clothing/W = target.wear_mask
 			if(W.flags & NODROP)
 				return 0
diff --git a/code/modules/mob/living/carbon/carbon.dm b/code/modules/mob/living/carbon/carbon.dm
index bdb9a359a09..be24a51e027 100644
--- a/code/modules/mob/living/carbon/carbon.dm
+++ b/code/modules/mob/living/carbon/carbon.dm
@@ -625,6 +625,13 @@ var/list/ventcrawl_machinery = list(/obj/machinery/atmospherics/unary/vent_pump,
 
 	dat += "<tr><td><B>Mask:</B></td><td><A href='?src=[UID()];item=[slot_wear_mask]'>[(wear_mask && !(wear_mask.flags&ABSTRACT)) ? wear_mask : "<font color=grey>Empty</font>"]</A></td></tr>"
 
+	if(istype(wear_mask, /obj/item/clothing/mask/muzzle))
+		var/obj/item/clothing/mask/muzzle/M = wear_mask
+		if(M.security_lock)
+			dat += "&nbsp;<A href='?src=[M.UID()];locked=\ref[src]'>[M.locked ? "Disable Lock" : "Set Lock"]</A>"
+
+		dat += "</td></tr><tr><td>&nbsp;</td></tr>"
+
 	if(handcuffed)
 		dat += "<tr><td><B>Handcuffed:</B> <A href='?src=[UID()];item=[slot_handcuffed]'>Remove</A></td></tr>"
 	if(legcuffed)
diff --git a/code/modules/mob/living/carbon/human/human.dm b/code/modules/mob/living/carbon/human/human.dm
index a2235b3811c..23061d2a285 100644
--- a/code/modules/mob/living/carbon/human/human.dm
+++ b/code/modules/mob/living/carbon/human/human.dm
@@ -455,7 +455,14 @@
 	if(slot_wear_mask in obscured)
 		dat += "<tr><td><font color=grey><B>Mask:</B></font></td><td><font color=grey>Obscured</font></td></tr>"
 	else
-		dat += "<tr><td><B>Mask:</B></td><td><A href='?src=[UID()];item=[slot_wear_mask]'>[(wear_mask && !(wear_mask.flags&ABSTRACT)) ? wear_mask : "<font color=grey>Empty</font>"]</A></td></tr>"
+		dat += "<tr><td><B>Mask:</B></td><td><A href='?src=[UID()];item=[slot_wear_mask]'>[(wear_mask && !(wear_mask.flags&ABSTRACT)) ? wear_mask : "<font color=grey>Empty</font>"]</A>"
+
+		if(istype(wear_mask, /obj/item/clothing/mask/muzzle))
+			var/obj/item/clothing/mask/muzzle/M = wear_mask
+			if(M.security_lock)
+				dat += "&nbsp;<A href='?src=[M.UID()];locked=\ref[src]'>[M.locked ? "Disable Lock" : "Set Lock"]</A>"
+
+		dat += "</td></tr><tr><td>&nbsp;</td></tr>"
 
 	if(!issmall(src))
 		if(slot_glasses in obscured)
diff --git a/code/modules/mob/living/say.dm b/code/modules/mob/living/say.dm
index 81664f631d4..aab36c844ec 100644
--- a/code/modules/mob/living/say.dm
+++ b/code/modules/mob/living/say.dm
@@ -163,10 +163,10 @@ proc/get_radio_key_from_channel(var/channel)
 
 	if(is_muzzled())
 		var/obj/item/clothing/mask/muzzle/G = wear_mask
-		if(G.mute) //if the mask is supposed to mute you completely or just muffle you
+		if(G.mute == MUTE_ALL) //if the mask is supposed to mute you completely or just muffle you
 			to_chat(src, "<span class='danger'>You're muzzled and cannot speak!</span>")
 			return
-		else
+		else if(G.mute == MUTE_MUFFLE)
 			message = muffledspeech(message)
 			verb = "mumbles"
 
diff --git a/code/modules/reagents/chemistry/reagents/water.dm b/code/modules/reagents/chemistry/reagents/water.dm
index c1c3191c5ba..13f825d589d 100644
--- a/code/modules/reagents/chemistry/reagents/water.dm
+++ b/code/modules/reagents/chemistry/reagents/water.dm
@@ -357,22 +357,46 @@
 			M.SetConfused(0)
 			return
 	if(ishuman(M) && M.mind && M.mind.vampire && !M.mind.vampire.get_ability(/datum/vampire_passive/full) && prob(80))
-		switch(current_cycle)
-			if(1 to 4)
-				to_chat(M, "<span class = 'warning'>Something sizzles in your veins!</span>")
-				M.mind.vampire.nullified = max(5, M.mind.vampire.nullified + 2)
-			if(5 to 12)
-				to_chat(M, "<span class = 'danger'>You feel an intense burning inside of you!</span>")
-				M.adjustFireLoss(1)
-				M.mind.vampire.nullified = max(5, M.mind.vampire.nullified + 2)
-			if(13 to INFINITY)
-				to_chat(M, "<span class = 'danger'>You suddenly ignite in a holy fire!</span>")
-				for(var/mob/O in viewers(M, null))
-					O.show_message(text("<span class = 'danger'>[] suddenly bursts into flames!<span>", M), 1)
-				M.fire_stacks = min(5,M.fire_stacks + 3)
-				M.IgniteMob()			//Only problem with igniting people is currently the commonly availible fire suits make you immune to being on fire
-				M.adjustFireLoss(3)		//Hence the other damages... ain't I a bastard?
-				M.mind.vampire.nullified = max(5, M.mind.vampire.nullified + 2)
+		var/mob/living/carbon/V = M
+		if(M.mind.vampire.bloodusable)
+			M.Stuttering(1)
+			M.Jitter(30)
+			M.adjustStaminaLoss(5)
+			if(prob(20))
+				M.emote("scream")
+			M.mind.vampire.nullified = max(5, M.mind.vampire.nullified + 2)
+			M.mind.vampire.bloodusable = max(M.mind.vampire.bloodusable - 20,0)
+			if(M.mind.vampire.bloodusable)
+				V.vomit(0,1)
+			else
+				holder.remove_reagent(id, volume)
+				V.vomit(0,0)
+				return
+		else
+			switch(current_cycle)
+				if(1 to 4)
+					to_chat(M, "<span class = 'warning'>Something sizzles in your veins!</span>")
+					M.mind.vampire.nullified = max(5, M.mind.vampire.nullified + 2)
+				if(5 to 12)
+					to_chat(M, "<span class = 'danger'>You feel an intense burning inside of you!</span>")
+					M.adjustFireLoss(1)
+					M.Stuttering(1)
+					M.Jitter(20)
+					if(prob(20))
+						M.emote("scream")
+					M.mind.vampire.nullified = max(5, M.mind.vampire.nullified + 2)
+				if(13 to INFINITY)
+					to_chat(M, "<span class = 'danger'>You suddenly ignite in a holy fire!</span>")
+					for(var/mob/O in viewers(M, null))
+						O.show_message(text("<span class = 'danger'>[] suddenly bursts into flames!<span>", M), 1)
+					M.fire_stacks = min(5,M.fire_stacks + 3)
+					M.IgniteMob()			//Only problem with igniting people is currently the commonly availible fire suits make you immune to being on fire
+					M.adjustFireLoss(3)		//Hence the other damages... ain't I a bastard?
+					M.Stuttering(1)
+					M.Jitter(30)
+					if(prob(40))
+						M.emote("scream")
+					M.mind.vampire.nullified = max(5, M.mind.vampire.nullified + 2)
 	..()