There's a new feature in GTAO, released as part of a recent update. You can become a VIP, and hire other players as bodyguards. In doing this you can make all members of your organisation friendly. You can still bash them with melee, but you can't hurt them. This means people now climb onto helo rotors to be thrown as you start the engine up. Or jump off small ledges onto the spinning rotors to be thrown for hundreds of metres.