have you heard this one?
a doctor gets the urine samples of a nun and a pregnant woman mixed up. then on the day the nun came to the doctor to collect her test results, the doc told her, "i didn't believe this at first, but i guess miracles can happen - you're pregnant". the nun looks at him and says, "damn it, we cant even trust cucumbers anymore". 
Bad pick up line: hey baby, is your dad a terrorist? cause you da bomb! 
ouch..