Update shields.dm

code/game/objects/items/shields.dm

@@ -107,6 +107,8 @@
 	return TRUE
 
 /obj/item/shield/proc/user_shieldbash(mob/living/user, atom/target, harmful)
+	if(!(user.combat_flags & COMBAT_FLAG_COMBAT_ACTIVE)) //Combat mode has to be enabled for shield bashing
+		return FALSE
 	if(!(shield_flags & SHIELD_CAN_BASH))
 		to_chat(user, "<span class='warning'>[src] can't be used to shield bash!</span>")
 		return FALSE