Allows mice to pass over/under tables.

code/modules/mob/living/simple_animal/friendly/mouse.dm

@@ -9,6 +9,7 @@
 	speak_emote = list("squeeks","squeeks","squiks")
 	emote_hear = list("squeeks","squeaks","squiks")
 	emote_see = list("runs in a circle", "shakes", "scritches at something")
+	pass_flags = PASSTABLE
 	speak_chance = 1
 	turns_per_move = 5
 	see_in_dark = 6
@@ -168,4 +169,4 @@ mob/living/simple_animal/mouse/restrained() //Hotfix to stop mice from doing thi
 	desc = "Jerry the cat is not amused."
 	response_help  = "pets"
 	response_disarm = "gently pushes aside"
-	response_harm   = "splats"
+	response_harm   = "splats"