You're too young and you won't remember this but a grocery store I used to go to with my parents they actually put the brown paper bag on these rollers and they rolled outside in front of the store and you could pull your car up and they had somebody there that would put them in your car or trunk.
Well my girlfriend and I thought it would be a gas if we sat on the rollers and rolled ourselves down and outside the store.
My girlfriend grabbed her mother's green stamp books and sat on them I wasn't smart enough to do that so we went flying down the rollers outside the store she was fine but I got a 6-inch cut on my ass and had to go to the hospital and get a couple of butterfly stitches..lol