A horse walks into a bar,…

A horse walks into a bar, and the bartender says, "Why the long face?"
Jokes, +1:
A kid from Mississippi is on Harvard campus for the first time, he stops a student and asks, "Excuse me, can you tell me where the library is at?" The Harvard student replies "At Harvard, you don’t end a sentence with a preposition." The kid said, "Sorry about that. Can you tell me where the library is at, asshole?"