Short story thing: Driving down the highway at about 80 mph, roof rack thing opens cause it wasn't locked or something, one of my cousins skis goes flying. He's young, so he has mini public enemys, very very light. Stopped the car, my uncle went and got the ski, he ran across the highway, brought it back, perfectly fine. Besides some dirt on the base. Same thing happened one time, but it was a duffle bag from camping and it tore into shreds.
Was that just luck or are public enemys really tough. Plus, it was mini junior ones.. I'm thinking luck.