About a hundred years ago, a friend had a 250 CanAm dirt bike. He broke down back in the hills, not far from his truck. I towed him out with my SWM trials bike using a tie down strap. After pulling him up a hill, I had to cross a pair of RR tracks. Do you see where this is going? I didn't release the tie down from my back frame, just drug the thing behind my bike. When the hook on the trailing end of the strap caught the rail, my bike stopped and went down instantly. After I got loose and loaded my bike it was funny, not until then, though. lol Epic fail.