[www.latimes.com]

"He kept riding, until he sat down one morning on a seat that was wet and hot with urine. With no change of clothes on hand, he wore the urine-soaked pants to work. Then he started driving to work again.

“There’s only so much we can take,” Barajas said. “At least I can sit in my car without worrying what I’m sitting in.”'

I have to admit I sped-read this article - entirely too depressing.