Just thinking about club types that I've hired in the past - C150s, C172s, PA28s - all the usual stuff. On most of the Cessnas the parking brakes don't really work yet most people just stand there, in front of the aircraft, pulling the prop round as part of their walkround. If it burst in to life what would stop it moving forward turning poor Johnny PPL into coleslaw on the way?
How should we do it? Well to one side, from behind, chocked with someone in the cabin? I don't mind it taking more time - always better to be five minutes late in this life than early in the next. So, how should it best be done?