It's a bus that's been booked out by about 30 colleagues, on your way back from a corporate do. Everyone's had a bit to drink. One person has had too much. They hurl. Most of the colleagues are pretty matey, a few of the usual tensions, but generally good-spirited. Driver says it will be a £30 clean up fee.
a) All chip in a bit, we've all been there, he's our pal, he's going feel terrible about it tomorrow.
b) Say fuck it, it's his fault, make him get his wallet out and fork over the cash.
This debate happened yesterday on my coach, and it caused a lot of bad feelings.