Ok, I was reading the harbor fright thread and someone mentioned jack stands and it made me think of car ramps.

Well a few weeks about me and my dad went to put splash guards on his SUV, and we discovered we couldn't fit the cordless drill under the SUV because the drill was too long. So we decided to put it up on ramps. So I pull them out and stick them under the tires and my dad goes to pull up them. Well my dad punches it and the tires grab the ramps, the SUV goes flying into the air and the ramps go sliding down the driveway and hit the rear tires. No damage to the car at all! The rear tires didn't move an inch. We just stood their laughing for a few minutes and realized we could of just fucked the car up big time. So we found out puematic drill and that was small enough

I swear if I was just driving by someone'* house and saw it happened I would of pissed myself. It may not seem funny - it was a thing were you just had to be there. I wish I had it on video

thats the only thought on my mind NOT to do when im driving on ramps