I just saw a pic of a t-shirt with the slogan "Ewwwwww, people" which made me grin as I have a zippo lighter with the phrase "people like you are the reason people like me need medication"
This reminded me that I once spent an afternoon mooching round the beach with a mate without realising he was wearing an "I'm with stupid ----->" shirt, after an hour or so someone pointed out that for the entire hour I'd dutifully walked on the side of the arrow Talk about clueless
Anyone else got any good funny slogans for t-shirts / posters ???
EDIT:- Title changed. This thread includes funny pictures, cartoons and assorted other gags as well as t-shirts