I know that we tend to focus on errors in street signs, but come one. Didn't anyone who can spell see this sign? Its not like its an obscure (or even common) last name. This is a basic English word. I think we are all so amused (or bothered) by spelling mistakes on signs because there are usually two words total on signs. There just isn't a huge opportunity for error. Now, if they were putting a couple hundred words on there, a mistake wouldn't be quite so funny.