I know, I know, people who blog in glass houses shouldn't throw stones or something like that. And though we're typographically-challenged here on Neatorama, we just can't resist this news from Channel 7 News Fox WSVN TV:
After painters misspelled the word "school" on the road, the sign has become the talk of the town, especially for students who attend class nearby.
Students who attend Goulds Elementary School have no problem spelling the word "school," however, whoever painted the word on the pavement spelled the word incorrectly.
Children who are learning to read and write are recommending that whoever painted the misspelled word go back to school.
http://www.wsvn.com/news/articles/local/MI124318/ - via Dave Barry's Blog
That implies they needed a reference to get the spelling correct. This just seems more like a big, public, hard-to-fix typo.