[jh00ker]

Kind of crazy this is so successful, considering it's hosted in a country where it's the norm for (so many, but not all) people to leave their bags of popcorn and cups of soda at their seats when they leave the movie theatre or ball game, under the assumption, "someone else will take care of it."

[giarc]

But that's all based on societal norms. It's kind of understood (whether it's right or not) to leave popcorn etc under your seat at a theatre or a stadium. At Burning Man, it's obviously not acceptable.