If the thread question is pre-supposing you are already in the situation, before being flung off the strut, easy. Remove feet from ground. Support entire body from strut, and work inboard toward the fuselage. Invoke superpowers. Poo a little bit. Carefully put one foot on the step, invoke more superpowers, find a handhold, and in one smooth movement open the door against the propwash while moving body against the centripetal force in to the cabin-deftly and with dignity moving over the lady pax in a fluid motion - release the park brake when the a/c is pointing the correct way, open her up, get airborne, claim it's all pretty normal and nothing to be scared of, stop pooing, close door.
