im so sure that people vomit on purpose all the time, ive never even seen anyone vomit in public, if they do it's not like it's anything they can control, in canada people piss on the side's of the roads, they dont even have rest area's on their interstates, and their worried about people vomiting in public, i would rather see that than some old man's wrinkled you know what, on the side of the road just gross.