Sat Nov 16 2002 11:03 Progress:
It used to be that someone at every BART station had written "NO WET TICKETS" on a piece of paper and taped it to every ticket-taking machine in that station, because the ticket-takers would choke on wet tickets. But times have changed, and now all those ad-hoc signs have been replaced by a standardized "NO WET TICKETS" sign with a graphic on it.