Originally Posted by
Homsap
...I have seen people hand swinging aircraft, when there is no occupant in the aircaft, utter maddness!
Other opinions are available. I do it all the time. It's even shown in the flight manual for my aircraft.
[edited to add]
Generally solo hand propping is done from behind the prop with the controls within reach.
It's still not a place to be careless in your movements but with reasonable care and attention it is quite safe.