I once went to a conference that was held on an Arizona college campus during summer session. The school kept having soda and vending machines disappear periodically. It turned out that guys from the local tribe were taking the entire machines back to the reservation in their trucks, using them until they were empty, and then lugging them back to be refilled. I'm not sure what method they were using to get the soda out without paying, but they finally caught some of the guys using video cameras. I think it was all done more for the excitement than the soda...and also maybe to make a statement of some kind. (I can't imagine hauling one of those big machines around for the soda it would hold.)