Ok, my first "giant scale plane" 30% edge with a ZDZ 80, wouldn't start needed the throttle set. So I tie this thing to a Pallet with 2 bungie cords right? flip,flip, and flip, on my knees, cuss, flip, flip, by now the neighbor guy, working on his stock car is peeking out of his garage watching. Flip, flip, cuss, flip, flip, VAROOM off she goes, half throttle, lurching at me like a Rottweiler chained to a truck tire, me sliding backwards on my butt. Needless to say the neighbor was no help because he was laughing so hard he peed his pants. Moral of the story is this if you continue to do stupid stuff it will get you, I got lucky once, never tried that again, get help holding the plane if you can if not think about what you are doing, have an escape route, don't endanger yourself or others. Our hobby in under enough scrutiny right now, we need to keep it a safe and family friendly..
Fly safe!