A police officer pulls over this guy who’s been weaving in and out of the lanes. He goes up to the guy’s window and says “Sir, I need you to blow into this breathalyzer tube.”
Guy: “Sorry, officer, I can’t do that. I am an asthmatic. If I do that, I’ll have a really bad asthma attack.”
Officer: “Okay, fine. I need you to come down to the station to give a blood sample.”
Guy: “I can’t do that either. I am a hemophiliac. If I do that, I’ll bleed to death.”
Officer: “Well, then, we need a urine sample.”
Guy: “I’m sorry, officer, I can’t do that either. I am also a diabetic. If I do that, I’ll get really low blood sugar.”
Officer: “All right, then I need you to come out here and walk this white line.”
Guy: “I can’t do that, officer.”
Officer: “Why not?”
Guy: “Because I’m drunk.”