A guy traveling through Mexico on vacation, lost his wallet and all Identification. Cutting his trip short, he attempts to make his way home but is stopped by the U.S. Customs Agent at the border.
'May I see your identification, please'? asks the agent.
'I'm sorry, but I lost my wallet,' replies the guy.
'Sure buddy, I hear that every day. No ID, no entry,' says the agent.
'But I can prove I'm an American!' he exclaims. 'I have a picture of Ronald Reagan tattooed on one butt cheek and George Bush on the other.'
This I gotta see,' replies the agent.
With that, the guy drops his pants and shows the agent.
'By golly, you're right!' exclaims the agent.
'Have a safe trip back to Chicago .'
'Thanks!' he says. 'But how did you know I was from Chicago ?'