oh, i have so many.
I always make people sign a contract, that say "YOU BREAK IT, IT PAY FOR IT" Or i have the right to egg their house, kick there *****. or other horrible things. And when i drive my buddies car, im always careful, and i break it, ill pay for it.
But heres my story. My friend had just got his new xxx-t and was driving it on the first day he had it running. And we were all in a group, and the one kid that didnt have a r/c ask to drive, i said no, but my other friend said yes, with his new xxx-t. So hes driving it and guns it and BOOM, right into the curb at full throttle! Well he broke my friends chassie and shock tower. and said "oh i though it would do a wheelie" he didnt say sorry, or pay. and my friend paid $40 in damage. poor kid!