I really hate drug tests, they really piss me off...
But once urine the system...
What did the mortician say when his assistant suddenly quit on him?
"Go ahead, it's your funeral!"
What did Mike Tyson's parents say when he told them that he wanted to be a boxer?
"Go ahead, knock yourself out!"
Don't ever tell a Doctor that you have the Bubonic Plague...
They'll look at you like you have the plague or something!