The streets are pretty much snow-compacted right now. When we were in our early teens we used to "hook bumpers". This required the snow-compacted streets, slippery shoes (leather-soled penny-loafers at that time), a distracted driver and a teenage sense of safety. When a car pulled up to a stop sign a couple of us would discreetly squat behind the car in a ski-jump position, hook our hands under the bumper and wait for the free tow. It's a real blast at 20+ mph. I don't recall anyone getting severely injured. How can that be possible? Nobody ever decided to back up?