Airshow act gone amis back in 73

My late dad (James Gould) flying his friend Henry's modified J-3 in a bizarre airshow act in Dothan Ala in 73. As can be seen, Henry's act involved him dropping off a ladder and tumbling head over arse along grass runways. My Dad substituted this once to keep him from getting killed with a less experienced pilot, but the guy's foot got caught in the ladder. Ol' Dad kept it at the required altitude (as he can be seen looking out) despite a tree line looming out of view. At the last possible moment, he got free and Dad pulled the J3 up. A lesser pilot would have gotten the guy killed or wound up in the trees.