As a friend you could say, bring 100 dolllars, give it too me, and if you crash it, I keep the 100 bucks to repair the drone. If no crash, I give you the 100 dollars back. Are we still friends? Truthfully though? I would probably let a friend fly it, but not let them take off or land. I would fly it to about 50 ft and then give them the controller. If I see any risk, like getting too close to something, i would take the controller back. Of course i'd explain all that to the friend first.