The blob eats nondense things in all cases.

Probably fixes one or two bugs in the process.

code/game/objects/structures.dm

@@ -12,6 +12,8 @@
 		cameranet.updateVisibility(src)
 
 /obj/structure/blob_act()
+	if(!density)
+		qdel(src)
 	if(prob(50))
 		qdel(src)
 

code/game/objects/structures/beds_chairs/bed.dm

@@ -53,10 +53,9 @@
 				return
 
 /obj/structure/bed/blob_act()
-	if(prob(75))
-		if(buildstacktype)
-			new buildstacktype(loc, buildstackamount)
-		qdel(src)
+	if(buildstacktype)
+		new buildstacktype(loc, buildstackamount)
+	qdel(src)
 
 /obj/structure/bed/attackby(obj/item/weapon/W, mob/user, params)
 	if(istype(W, /obj/item/weapon/wrench))

code/game/objects/structures/fireaxe.dm

@@ -69,9 +69,9 @@
 		update_icon()
 
 /obj/structure/fireaxecabinet/blob_act()
-	if(prob(75) && fireaxe)
+	if(fireaxe)
 		fireaxe.loc = src.loc
-		qdel(src)
+	qdel(src)
 
 /obj/structure/fireaxecabinet/attack_hand(mob/user)
 	if(open || glass_hp <= 0)

code/game/objects/structures/lattice.dm

@@ -24,7 +24,6 @@
 	stored = new/obj/item/stack/rods(src)
 
 /obj/structure/lattice/blob_act()
-	qdel(src)
 	return
 
 /obj/structure/lattice/ex_act(severity, target)