At least this was caught now (#23563)

code/modules/paperwork/pen.dm

@@ -132,8 +132,8 @@
 	add_attack_logs(user, M, "Stabbed with (sleepy) [src]. [transfered]u of reagents transfered from pen containing [english_list(contained)].")
 	for(var/datum/reagent/R as anything in reagents.reagent_list)
 		if(initial(R.id) == "????") // Yes this is a specific case that we don't really want
-			return TRUE
-	reagents.reaction(M, REAGENT_INGEST, 0.1)
+			continue
+		reagents.reaction(M, REAGENT_INGEST, 0.1)
 	return TRUE
 
 

code/modules/projectiles/projectile/bullets.dm

@@ -264,12 +264,12 @@
 		if(blocked != INFINITY)
 			if(M.can_inject(null, FALSE, hit_zone, piercing)) // Pass the hit zone to see if it can inject by whether it hit the head or the body.
 				..()
+
 				for(var/datum/reagent/R as anything in reagents.reagent_list)
 					if(initial(R.id) == "????") // Yes this is a specific case that we don't really want
-						reagents.trans_to(M, reagents.total_volume)
-						return TRUE
+						continue
+					reagents.reaction(M, REAGENT_INGEST, 0.1)
 				reagents.trans_to(M, reagents.total_volume)
-				reagents.reaction(M, REAGENT_INGEST, 0.1)
 				return TRUE
 			else
 				blocked = INFINITY

code/modules/reagents/reagent_containers/hypospray.dm

@@ -53,8 +53,8 @@
 			add_attack_logs(user, M, "Injected with [src] containing ([contained])", reagents.harmless_helper() ? ATKLOG_ALMOSTALL : null)
 			for(var/datum/reagent/R as anything in reagents.reagent_list)
 				if(initial(R.id) == "????") // Yes this is a specific case that we don't really want
-					return TRUE
-			reagents.reaction(M, REAGENT_INGEST, 0.1)
+					continue
+				reagents.reaction(M, REAGENT_INGEST, 0.1)
 		return TRUE
 
 /obj/item/reagent_containers/hypospray/attack(mob/living/M, mob/user)