Originally posted by annie

Now, as to what they do when they gotta do more serious business that just "pee", I don't know.
I was following the internet live coverage updates during one of the stages last week and they mentioned that a rider had gone off into the woods for a bathroom break. I'm assuming he wasn't doing that just to pee.

One of his teammates waited for him so they could fight their way back to the peloton together. I guess not much different than what happens if someone gets a flat.