Reminds me of the story of a couple of lads out in Alberta on Ex Medicine Man. After an evening sampling the delights of the 'Bin in Medicine Hat they manage to get a taxi to take them back to Suffield.
"Look," says the driver "I know you're full of beer, but this is my taxi, my office, and my home for most of the time. If you feel like barfing, let me know. I'll pull over. You open the door and barf, and we'll be on our way again."
Halfway home and one of the lads is getting the urge. Driver gets the message, slows down and pulls onto the verge. Mate in the back opens the door, discharges the contents of his stomach into his own lap, and closes the door.