Can no longer use utensils to eat if you lack the means.

Humanoid mobs can no longer eat when missing a mouth or when their mouth is blocked when using utensils, same as when eating food directly.
Fixes  #11333.

baystation12.dme

@@ -1221,6 +1221,7 @@
 #include "code\modules\mob\living\carbon\human\human_damage.dm"
 #include "code\modules\mob\living\carbon\human\human_defense.dm"
 #include "code\modules\mob\living\carbon\human\human_defines.dm"
+#include "code\modules\mob\living\carbon\human\human_helpers.dm"
 #include "code\modules\mob\living\carbon\human\human_movement.dm"
 #include "code\modules\mob\living\carbon\human\human_organs.dm"
 #include "code\modules\mob\living\carbon\human\human_powers.dm"

code/game/objects/items/weapons/material/kitchen.dm

@@ -34,6 +34,11 @@
 		else
 			return ..()
 
+	if(ishuman(M))
+		var/mob/living/carbon/human/H = M
+		if(!H.can_eat(src))
+			return
+
 	if (reagents.total_volume > 0)
 		reagents.trans_to_mob(M, reagents.total_volume, CHEM_INGEST)
 		if(M == user)

code/modules/mob/living/carbon/human/human_helpers.dm

@@ -0,0 +1,11 @@
+/mob/living/carbon/human/proc/can_eat(var/food, var/feedback = 1)
+	if(!check_has_mouth())
+		if(feedback)
+			src << "Where do you intend to put \the [food]? You don't have a mouth!"
+		return 0
+	var/obj/item/blocked = check_mouth_coverage()
+	if(blocked)
+		if(feedback)
+			src << "<span class='warning'>\The [blocked] is in the way!</span>"
+		return 0
+	return 1

code/modules/reagents/reagent_containers/food/snacks.dm

@@ -45,12 +45,7 @@
 		if(M == user)								//If you're eating it yourself
 			if(istype(M,/mob/living/carbon/human))
 				var/mob/living/carbon/human/H = M
-				if(!H.check_has_mouth())
+				if(!H.can_eat(src))
-					user << "Where do you intend to put \the [src]? You don't have a mouth!"
-					return
-				var/obj/item/blocked = H.check_mouth_coverage()
-				if(blocked)
-					user << "<span class='warning'>\The [blocked] is in the way!</span>"
 					return
 
 			if (fullness <= 50)