A prospective student from Texas was visiting Yale, but he was
having problems finding the library. He spotted a well-dressed,
proper-looking student crossing the street, so he decided to ask
him where the library was.

"Excuse me, mister. Can you tell me where the library's at?" the
Texan inquired.

"My good sir, people of good taste and upbringing know that you
should never end a sentence with a preposition. Any student at
Yale knows that. I suggest you review your grammar rules before
even considering attending this fine institution."

"Oh, I see, mister. Well, then, can you tell me where the
library's at, asshole?"