diff --git a/code/_helpers/turfs.dm b/code/_helpers/turfs.dm
index 8583628114..1926246856 100644
--- a/code/_helpers/turfs.dm
+++ b/code/_helpers/turfs.dm
@@ -32,3 +32,10 @@
 	if(!available_turfs.len)
 		available_turfs = start_turfs
 	return pick(available_turfs)
+
+/proc/is_below_sound_pressure(var/turf/T)
+	var/datum/gas_mixture/environment = T ? T.return_air() : null
+	var/pressure =  environment ? environment.return_pressure() : 0
+	if(pressure < SOUND_MINIMUM_PRESSURE)
+		return TRUE
+	return FALSE
\ No newline at end of file
diff --git a/code/_helpers/type2type.dm b/code/_helpers/type2type.dm
index 0bcf546123..8dc9cb020b 100644
--- a/code/_helpers/type2type.dm
+++ b/code/_helpers/type2type.dm
@@ -73,14 +73,14 @@
 // Turns a direction into text
 /proc/dir2text(direction)
 	switch (direction)
-		if (1.0)  return "north"
-		if (2.0)  return "south"
-		if (4.0)  return "east"
-		if (8.0)  return "west"
-		if (5.0)  return "northeast"
-		if (6.0)  return "southeast"
-		if (9.0)  return "northwest"
-		if (10.0) return "southwest"
+		if (NORTH)  return "north"
+		if (SOUTH)  return "south"
+		if (EAST)  return "east"
+		if (WEST)  return "west"
+		if (NORTHEAST)  return "northeast"
+		if (SOUTHEAST)  return "southeast"
+		if (NORTHWEST)  return "northwest"
+		if (SOUTHWEST) return "southwest"
 
 // Turns text into proper directions
 /proc/text2dir(direction)
diff --git a/code/modules/mob/hear_say.dm b/code/modules/mob/hear_say.dm
index 343b8e4225..a240277d38 100644
--- a/code/modules/mob/hear_say.dm
+++ b/code/modules/mob/hear_say.dm
@@ -59,7 +59,7 @@
 		if(is_preference_enabled(/datum/client_preference/ghost_ears) && (speaker in view(src)))
 			message = "<b>[message]</b>"
 
-	if((sdisabilities & DEAF) || ear_deaf)
+	if(is_deaf())
 		if(!language || !(language.flags & INNATE)) // INNATE is the flag for audible-emote-language, so we don't want to show an "x talks but you cannot hear them" message if it's set
 			if(speaker == src)
 				src << "<span class='warning'>You cannot hear yourself speak!</span>"
diff --git a/code/modules/mob/living/carbon/human/human_helpers.dm b/code/modules/mob/living/carbon/human/human_helpers.dm
index 7682f675b0..67561125f1 100644
--- a/code/modules/mob/living/carbon/human/human_helpers.dm
+++ b/code/modules/mob/living/carbon/human/human_helpers.dm
@@ -90,6 +90,54 @@
 
 	return 0
 
+/mob/living/carbon/human
+	var/next_sonar_ping = 0
+
+/mob/living/carbon/human/proc/sonar_ping()
+	set name = "Listen In"
+	set desc = "Allows you to listen in to movement and noises around you."
+	set category = "Abilities"
+
+	if(incapacitated())
+		src << "<span class='warning'>You need to recover before you can use this ability.</span>"
+		return
+	if(world.time < next_sonar_ping)
+		src << "<span class='warning'>You need another moment to focus.</span>"
+		return
+	if(is_deaf() || is_below_sound_pressure(get_turf(src)))
+		src << "<span class='warning'>You are for all intents and purposes currently deaf!</span>"
+		return
+	next_sonar_ping += 10 SECONDS
+	var/heard_something = FALSE
+	src << "<span class='notice'>You take a moment to listen in to your environment...</span>"
+	for(var/mob/living/L in range(client.view, src))
+		var/turf/T = get_turf(L)
+		if(!T || L == src || L.stat == DEAD || is_below_sound_pressure(T))
+			continue
+		heard_something = TRUE
+		var/feedback = list()
+		feedback += "<span class='notice'>There are noises of movement "
+		var/direction = get_dir(src, L)
+		if(direction)
+			feedback += "towards the [dir2text(direction)], "
+			switch(get_dist(src, L) / client.view)
+				if(0 to 0.2)
+					feedback += "very close by."
+				if(0.2 to 0.4)
+					feedback += "close by."
+				if(0.4 to 0.6)
+					feedback += "some distance away."
+				if(0.6 to 0.8)
+					feedback += "further away."
+				else
+					feedback += "far away."
+		else // No need to check distance if they're standing right on-top of us
+			feedback += "right on top of you."
+		feedback += "</span>"
+		src << jointext(feedback,null)
+	if(!heard_something)
+		src << "<span class='notice'>You hear no movement but your own.</span>"
+
 #undef HUMAN_EATING_NO_ISSUE
 #undef HUMAN_EATING_NO_MOUTH
 #undef HUMAN_EATING_BLOCKED_MOUTH
diff --git a/code/modules/mob/living/carbon/human/species/station/seromi.dm b/code/modules/mob/living/carbon/human/species/station/seromi.dm
index 9316eaecad..ed5f0de570 100644
--- a/code/modules/mob/living/carbon/human/species/station/seromi.dm
+++ b/code/modules/mob/living/carbon/human/species/station/seromi.dm
@@ -31,8 +31,9 @@
 	brute_mod = 1.35
 	burn_mod =  1.35
 	mob_size = MOB_SMALL
+	pass_flags = PASSTABLE
 	holder_type = /obj/item/weapon/holder/human
-	short_sighted = 1
+//	short_sighted = 1
 	gluttonous = 1
 	blood_volume = 400
 	hunger_factor = 0.2
@@ -84,40 +85,13 @@
 		/datum/unarmed_attack/claws,
 		/datum/unarmed_attack/stomp/weak
 		)
-/*
-	var/shock_cap = 30
-	var/hallucination_cap = 25
 
-// I'm... so... ronrery, so ronery...
-/datum/species/teshari/handle_environment_special(var/mob/living/carbon/human/H)
-
-	// If they're dead or unconcious they're a bit beyond this kind of thing.
-	if(H.stat)
-		return
-
-	// No point processing if we're already stressing the hell out.
-	if(H.hallucination >= hallucination_cap && H.shock_stage >= shock_cap)
-		return
-
-	// Check for company.
-	for(var/mob/living/M in viewers(H))
-		if(M == H || M.stat == DEAD || M.invisibility > H.see_invisible)
-			continue
-		if(M.faction == "neutral" || M.faction == H.faction)
-			return
-
-	// No company? Suffer :(
-	if(H.shock_stage < shock_cap)
-		H.shock_stage += 1
-	if(H.shock_stage >= shock_cap && H.hallucination < hallucination_cap)
-		H.hallucination += 2.5
-*/
-/datum/species/teshari/get_vision_flags(var/mob/living/carbon/human/H)
-	if(!(H.sdisabilities & DEAF) && !H.ear_deaf)
-		return SEE_SELF|SEE_MOBS
-	else
-		return SEE_SELF
+	inherent_verbs = list(
+		/mob/living/carbon/human/proc/sonar_ping,
+		/mob/living/proc/hide
+		)
 
 /datum/species/teshari/equip_survival_gear(var/mob/living/carbon/human/H)
 	..()
 	H.equip_to_slot_or_del(new /obj/item/clothing/shoes/sandal(H),slot_shoes)
+
diff --git a/code/modules/mob/mob.dm b/code/modules/mob/mob.dm
index aaea193734..7d969569d4 100644
--- a/code/modules/mob/mob.dm
+++ b/code/modules/mob/mob.dm
@@ -50,13 +50,13 @@
 	if(!client)	return
 
 	if (type)
-		if((type & 1) && ((sdisabilities & BLIND) || blinded || paralysis) )//Vision related
+		if((type & 1) && (is_blind() || paralysis) )//Vision related
 			if (!( alt ))
 				return
 			else
 				msg = alt
 				type = alt_type
-		if ((type & 2) && ((sdisabilities & DEAF) || ear_deaf))//Hearing related
+		if ((type & 2) && is_deaf())//Hearing related
 			if (!( alt ))
 				return
 			else
@@ -154,6 +154,12 @@
 		return UNBUCKLED
 	return restrained() ? FULLY_BUCKLED : PARTIALLY_BUCKLED
 
+/mob/proc/is_blind()
+	return ((sdisabilities & BLIND) || blinded || incapacitated(INCAPACITATION_KNOCKOUT))
+
+/mob/proc/is_deaf()
+	return ((sdisabilities & DEAF) || ear_deaf || incapacitated(INCAPACITATION_KNOCKOUT))
+
 /mob/proc/is_physically_disabled()
 	return incapacitated(INCAPACITATION_DISABLED)