A pair of boys in Canal Winchester, Ohio were kicked of a school bus for passing gas. It was the second time they'd disrupted the commute with their flatulence, which makes them repeat offenders. (H/T Slave2anMG)
That's a little extreme. Back in my school days, the morning bus was never anything less than putrid: preteen-to-teenaged boys smell like farts, armpits, and dirty hair. The morning bus itself had a permanent undercurrent of unbrushed teeth, so combine all of these, and yes. It was disgusting. I can't imagine there're many school buses that smell "good" though so why make a stink about it?
What I done there. You seen it.