Was sharing a hired school minibus on a sports holiday with some mates a few years back. We left and drove to France with a lot of alcohol on board, and an awful lot of vomit was plastered on the outside of the minibus by the time we arrived late at night.
The next day we decided we'd better clean the bus as the dried vomit was all over the bit that said "xxx Catholic Comprehensive School" and didn't really give the right impression.
Depite there being a tap just a few feet away, the fella responsible decided to make better use of a case of fosters that hadn't been touched on the journey (it was the only alcohol remaining) to wash the sides of the bus.
"Fosters, great for cleaning dried off vom from yer car"