5 Instructors taught me the kick, the 6 th propped from behind.
We called it the leg swing, and it was a graceful maneuver.
The kick produced an unstoppable motion away from the prop, and I was taught to be at a slight angle, so the motion took me out of line of the plane, passenger side, shortest distance to safety.
I have propped 180 HP 4 cylinder tail draggers, and 215 HP trikes, in addition to lesser and less demanding engines. Trikes are easier to stay out of the arc, since it is vertical.
When the aircraft was not tied down, there was always a skilled person onboard, and the parking brake set.
At one time, I had a set of chocks with attached rope, for recovering after seating and buckling. That was a Cessna 150, 3 chocks. We had problems in severe cold weather with little crank time. Started on the first 2 tries, or hand prop it.
The J3's that I started in had no electrical system, so by hand was the only way.