See, the guys name was Art, and you hang art on the wall, so after he "turned" into a zombie they.... Ah forget it. Maybe you don't watch the walking dead.
Anyway, that's the great thing about humour. Everyone has different tastes.
I think that's the worst part of it actually, because sometimes I make jokes that, when you know what it's about, are really funny, but some people don't get them 3-;