The pants were down but so was the size of the crowd the annual "Moon Over Amtrak" event in the Orange County's Laguna Niguel, where people line up to moon passing commuter trains.
It began as a bar bet in 1979 and has continued ever since.
About 400 people showed up for Saturday's mass mooning. Last year, about 8,000 showed up, mostly out-of-towners. And deputies shut it down after things got ugly, with traffic jams, drinking and public nudity.http://moonamtrak.org/