Funny signs I forgot I had

Gotta love it! My brother Paul lives in San Francisco and it was a visit to see him in 2005 that provided me with a lot of my funny signs. He sent me this sign this past summer and I am just getting around to posting it. It makes me smile to know that my brother and I find the same things humorous. He found this at an entrance to a San Francisco parking garage. The road sign is in St Andrews, Scotland where Dan is now a fresher. I snapped this in late 2007. Do the Scots see the humor in this or is it just juvenile Americans like me? The warning not to attack the bus driver was posted on a double-decker that took students and visitors from one campus to the other at the University of Edinburgh. I will keep looking in my photo “vault” for more gems like these.