diff --git a/code/game/dna.dm b/code/game/dna.dm
index c86fa683896..21f94b0ce29 100644
--- a/code/game/dna.dm
+++ b/code/game/dna.dm
@@ -563,6 +563,8 @@
 			else
 				viable_occupant = null
 				occupant_status += "<span class='bad'>Invalid DNA structure</span></div></div>"
+			if (viable_occupant && viable_occupant.stat == DEAD)
+				viable_occupant = null // No editing the dead.
 		else
 			occupant_status += "<span class='bad'>No subject detected</span></div></div>"
 
diff --git a/code/game/machinery/iv_drip.dm b/code/game/machinery/iv_drip.dm
index be55d92a750..b56321f9588 100644
--- a/code/game/machinery/iv_drip.dm
+++ b/code/game/machinery/iv_drip.dm
@@ -145,6 +145,8 @@
 				update_icon()
 
 /obj/machinery/iv_drip/attack_hand(mob/user)
+	if (!ishuman(user))
+		return
 	if(attached)
 		visible_message("[attached] is detached from \the [src]")
 		attached = null
diff --git a/code/game/objects/items/weapons/dna_injector.dm b/code/game/objects/items/weapons/dna_injector.dm
index 33308afbfc7..0d5d6fb2695 100644
--- a/code/game/objects/items/weapons/dna_injector.dm
+++ b/code/game/objects/items/weapons/dna_injector.dm
@@ -48,6 +48,10 @@
 	if(!user.IsAdvancedToolUser())
 		user << "<span class='notice'>You don't have the dexterity to do this!</span>"
 		return
+	if(ishuman(target))
+		var/mob/living/carbon/human/humantarget = target
+		if (!humantarget.can_inject(user, 1))
+			return
 	add_logs(user, target, "attempted to inject", object="[name]")
 
 	if(target != user)
diff --git a/code/modules/events/anomaly_bluespace.dm b/code/modules/events/anomaly_bluespace.dm
index 91f71dc1fe9..10ca2b4b64e 100644
--- a/code/modules/events/anomaly_bluespace.dm
+++ b/code/modules/events/anomaly_bluespace.dm
@@ -54,8 +54,8 @@
 					if(A.anchored) continue
 
 					var/turf/newloc = locate(A.x + x_distance, A.y + y_distance, TO.z) // calculate the new place
-					if(!A.Move(newloc)) // if the atom, for some reason, can't move, FORCE them to move! :) We try Move() first to invoke any movement-related checks the atom needs to perform after moving
-						A.loc = locate(A.x + x_distance, A.y + y_distance, TO.z)
+					if(!A.Move(newloc) && newloc) // if the atom, for some reason, can't move, FORCE them to move! :) We try Move() first to invoke any movement-related checks the atom needs to perform after moving
+						A.loc = newloc
 
 					spawn()
 						if(ismob(A) && !(A in flashers)) // don't flash if we're already doing an effect
diff --git a/code/modules/mob/living/carbon/human/life.dm b/code/modules/mob/living/carbon/human/life.dm
index 8aa7647ac50..d14b746171c 100644
--- a/code/modules/mob/living/carbon/human/life.dm
+++ b/code/modules/mob/living/carbon/human/life.dm
@@ -327,7 +327,7 @@
 
 
 /mob/living/carbon/human/handle_changeling()
-	if(mind)
+	if(mind && hud_used)
 		if(mind.changeling)
 			mind.changeling.regenerate()
 			hud_used.lingchemdisplay.invisibility = 0