When I was younger(1966) one of the Milwaukee news paper headlines was of two boys that were locked in a railcar full of empty beer bottles returning to the brewery. They spent 13 days living on stale beer left in the bottom of bottles, they arrived at the brewery and found in pretty good condition.
While looking up the dates I came across another instance of young fellows getting locked in a returning railcar of empty beer bottles. It was in 1998 and they spent 8 days locked in the car and survived on stale beer again in pretty good condition at the end of the ordeal.