Re: Parking Problem
I think the stuff about not pulling the prop is rubbish. The UK flying mags will print any old trash; just look at all the stuff about GPS not being authorised etc.
The in-flight stress on a prop blade, or the hub, or the end of the crankshaft (the flange), is far more than any human could exert on it. I've been looking for a reference for the relationship between thrust and horsepower but can't find it right now...
What one should not do is push/pull on the spinner; typically that is only 2mm thick aluminium and not hard to bend. Or, obviously, hold the prop blades anywhere except at their base. One also needs to be careful to not press against any prop heating or de-ice material as it is normally only stuck-on.