In this case here, I was the guy wildly gesticulating on the ramp. I was within 20' pointing/signing, he sat there running for another 30 seconds. Just wondered if I should have given him the"fire" signal. he left a 20 ft puddle of 100ll. He thanked me afterward, but I couldn't fathom what was going through his mind.
how exactly would you call atc #1 if your powered down, #2 don't know the reggie, #3 Buddy isn't on the radio have his headset on