You can no longer push/swap places with anchored mobs

code/modules/mob/living/living.dm

@@ -59,8 +59,9 @@
 	//Even if we don't push/swap places, we "touched" them, so spread fire
 	spreadFire(M)
 
-	if(now_pushing)
-		return 1
+	// No pushing if we're already pushing past something, or if the mob we're pushing into is anchored.
+	if(now_pushing || M.anchored)
+		return TRUE
 
 	//Should stop you pushing a restrained person out of the way
 	if(isliving(M))
@@ -68,7 +69,7 @@
 		if(L.pulledby && L.pulledby != src && L.restrained())
 			if(!(world.time % 5))
 				to_chat(src, "<span class='warning'>[L] is restrained, you cannot push past.</span>")
-			return 1
+			return TRUE
 
 		if(L.pulling)
 			if(ismob(L.pulling))
@@ -76,28 +77,28 @@
 				if(P.restrained())
 					if(!(world.time % 5))
 						to_chat(src, "<span class='warning'>[L] is restrained, you cannot push past.</span>")
-					return 1
+					return TRUE
 
 	if(moving_diagonally) //no mob swap during diagonal moves.
-		return 1
+		return TRUE
 
 	if(a_intent == INTENT_HELP) // Help intent doesn't mob swap a mob pulling a structure
 		if(isstructure(M.pulling) || isstructure(pulling))
-			return 1
+			return TRUE
 
 	if(!M.buckled && !M.has_buckled_mobs())
 		var/mob_swap
 		//the puller can always swap with it's victim if on grab intent
 		if(M.pulledby == src && a_intent == INTENT_GRAB)
-			mob_swap = 1
+			mob_swap = TRUE
 		//restrained people act if they were on 'help' intent to prevent a person being pulled from being seperated from their puller
 		else if((M.restrained() || M.a_intent == INTENT_HELP) && (restrained() || a_intent == INTENT_HELP))
-			mob_swap = 1
+			mob_swap = TRUE
 		if(mob_swap)
 			//switch our position with M
 			if(loc && !loc.Adjacent(M.loc))
-				return 1
-			now_pushing = 1
+				return TRUE
+			now_pushing = TRUE
 			var/oldloc = loc
 			var/oldMloc = M.loc
 
@@ -114,18 +115,18 @@
 			if(!M_passmob)
 				M.pass_flags &= ~PASSMOB
 
-			now_pushing = 0
-			return 1
+			now_pushing = FALSE
+			return TRUE
 
 	// okay, so we didn't switch. but should we push?
 	// not if he's not CANPUSH of course
 	if(!(M.status_flags & CANPUSH))
-		return 1
+		return TRUE
 	//anti-riot equipment is also anti-push
 	if(M.r_hand && (prob(M.r_hand.block_chance * 2)) && !istype(M.r_hand, /obj/item/clothing))
-		return 1
+		return TRUE
 	if(M.l_hand && (prob(M.l_hand.block_chance * 2)) && !istype(M.l_hand, /obj/item/clothing))
-		return 1
+		return TRUE
 
 //Called when we bump into an obj
 /mob/living/proc/ObjBump(obj/O)