Hm

code/modules/mob/living/carbon/alien/special/facehugger.dm

@@ -247,13 +247,13 @@
 
 /proc/CanHug(mob/living/M)
 	if(!istype(M))
-		return 0
+		return FALSE
 	if(M.stat == DEAD)
-		return 0
+		return FALSE
 	if(M.getorgan(/obj/item/organ/alien/hivenode))
-		return 0
+		return FALSE
 	if(AmBloodsucker(M))
-		return 0
+		return FALSE
 		
 	if(ismonkey(M))
 		return 1
@@ -262,9 +262,9 @@
 	if(ishuman(C) && !(SLOT_WEAR_MASK in C.dna.species.no_equip))
 		var/mob/living/carbon/human/H = C
 		if(H.is_mouth_covered(head_only = 1))
-			return 0
-		return 1
-	return 0
+			return FALSE
+		return TRUE
+	return FALSE
 
 #undef MIN_ACTIVE_TIME
 #undef MAX_ACTIVE_TIME