Where is the Library?

A gentleman wanders around the campus of a college looking for the library. He approaches a student and asked, "Excuse me young man. Would you be good enough and tell me where the library is at?"

The student, in a very arrogant and belittling tone, replied, "I sorry, sir, but at this school, we are taught never to end a sentence with a preposition!"

The gentleman smiled, and in a very apologetic tone replied, "I beg your pardon. Please allow me to rephrase my question. Would you be good enough to tell me where the library is at, you big jerk?"