Pilot has great big balls of brass, and the guy on the ground ain't too far behind. However, they only would have to fuck up once....say the pilot putting the main rotor into the dirt, smacking the tail rotor into ANYTHING (I notice there was no "stinger" on the vertical fin, which keeps the fin from hitting the ground), or the ground guy getting too close and having his head batted into the audience.
I have 3000 hours of rotary wing time in UH-1's AH-1's, and OH-58D(I) and D(R) helicopters. I've done my share of stupid shit, but nothing that compares to that particular rodeo.