I've been vomited one by someone who regularly drank too much and ended up chucking.

And I know of one guy sitting in the back seat of a car, in the middle, and when they couldn't pull over quick enough he projectile vomited straight ahead, it hit the windscreen and splashed back over everyone.

I torture people who vomit because the vomiters rarely have to clean up their mess. So the next day when they are dealing with their hang-overs, I do everything I can to make them feel atrocious.