Should make damp rag smothering work.

It was TOUCH, and the only chems that really do anything on TOUCH are acids.  This turns the rag into a 5u reuseable autoinjector, which isn't really a big deal because autoinjectors are everywhere.  This is just cooler and more flavorful.

code/modules/detectivework/footprints_and_rag.dm

@@ -30,7 +30,7 @@
 /obj/item/weapon/reagent_containers/glass/rag/attack(atom/target as obj|turf|area, mob/user as mob , flag)
 	if(ismob(target) && target.reagents && reagents.total_volume)
 		user.visible_message("\red \The [target] has been smothered with \the [src] by \the [user]!", "\red You smother \the [target] with \the [src]!", "You hear some struggling and muffled cries of surprise")
-		src.reagents.reaction(target, TOUCH)
+		src.reagents.reaction(target, INGEST)
 		spawn(5) src.reagents.clear_reagents()
 		return
 	else
@@ -50,4 +50,4 @@
 		return
 	usr << "That's \a [src]."
 	usr << desc
-	return
+	return