A police officer pulls over this guy who had been weaving in and out of the lanes.

He goes up to the guys window and says, Sir, I need you to blow into this breathalyzer tube.

The man says, Sorry officer I cant do that. I am an asthmatic. If I do that Ill have a really bad asthma attack.

Okay, fine. I need you to come down to the station to give a blood sample. I cant do that either. I am a hemophiliac. If I do that, Ill bleed to death.

Well, then we need a urine sample.

Im sorry officer I cant do that either. I am also a diabetic. If I do that Ill get really low blood sugar.

Alright then I need you to come out here and walk this white line.

I cant do that, officer.

Why not?

Because Im too drunk to do that!