Fixes sleeping smoke never disappearing. Also switching processing.Add(src) to processing |= src.

Makes the empty space on the chem bottles sprites clickable.
Fixes a runtime with reagent_containers/throw_impact()

code/game/objects/effects/effect_system/effects_foam.dm

@@ -29,7 +29,7 @@
 /obj/effect/effect/foam/New(loc)
 	..(loc)
 	create_reagents(1000) //limited by the size of the reagent holder anyway.
-	SSobj.processing.Add(src)
+	SSobj.processing |= src
 	playsound(src, 'sound/effects/bubbles2.ogg', 80, 1, -3)
 
 /obj/effect/effect/foam/Destroy()

code/game/objects/effects/effect_system/effects_smoke.dm

@@ -31,7 +31,7 @@
 /obj/effect/effect/smoke/New()
 	..()
 	create_reagents(500)
-	SSobj.processing.Add(src)
+	SSobj.processing |= src
 	lifetime += rand(-1,1)
 
 /obj/effect/effect/smoke/Destroy()
@@ -276,8 +276,9 @@
 	lifetime = 10
 
 /obj/effect/effect/smoke/sleeping/process()
-	for(var/mob/living/carbon/M in range(1,src))
-		smoke_mob(M)
+	if(..())
+		for(var/mob/living/carbon/M in range(1,src))
+			smoke_mob(M)
 
 /obj/effect/effect/smoke/sleeping/smoke_mob(mob/living/carbon/M)
 	if(..())

code/modules/reagents/reagent_containers.dm

@@ -82,7 +82,7 @@
 /obj/item/weapon/reagent_containers/throw_impact(atom/target)
 	. = ..()
 
-	if(!reagents.total_volume || !spillable)
+	if(!reagents || !reagents.total_volume || !spillable)
 		return
 
 	if(ismob(target) && target.reagents)
@@ -91,10 +91,9 @@
 		var/R
 		target.visible_message("<span class='danger'>[M] has been splashed with something!</span>", \
 						"<span class='userdanger'>[M] has been splashed with something!</span>")
-		if(reagents)
-			for(var/datum/reagent/A in reagents.reagent_list)
-				R += A.id + " ("
-				R += num2text(A.volume) + "),"
+		for(var/datum/reagent/A in reagents.reagent_list)
+			R += A.id + " ("
+			R += num2text(A.volume) + "),"
 
 		if(thrownby)
 			add_logs(thrownby, M, "splashed", R)