He collects these clothes by rummaging through people's garbage cans on tree lawns the night before trash pick-up. Another way he boosts his earnings is to stock up on beer and sell it by the can to the other carnies. Tree operates the Gravitron, which is a circular ride with a floor that spins around in circles. He considers it the best ride for obtaining shake. If you see the ride in action, it's easy to understand why.
People enter the ride.
Once it starts, it begins to spin. It spins faster and faster. At a certain point, the floor drops. Riders are kept in place through centrifugal force. As the ride slows down, the floor rises up to its original position.