I didn't keep it long enough I entered house instead.

Does other players see that wall bug too?

Lol!!! That's awesome, nice find. But what would happen if A guest was to talk to the butler to find you?

if you log out does the black screen go away

Instead of perm mute they now perm blind you :o

Yes they do :D

Had the black screen, but it went off to me :o

Lol I found the black screen one, not saying i found it first, but it had one advantage, it delayed one of my teleports to varrock for 3minutes, we could be onto something here.

weird very wierd...