When loading people into the Kajman, the helicopter will act as if it is being hit by a truck, then explode, wasting all your money (in King of the Hill).
People have said that its a bug where you have to many people coming into a helicopter at once.
2+ people going into the same seat at once.
Have reproduced this, and seen that if the pilot has AFM, and a gunner is in the gunner seat, if another player makes physical contact with the chopper by running into it the chopper will flip and explode. Players can get in and out safely provided they do not walk directly into the helicopter itself.
In step to step order: