Having worked around airplanes and flown them for nearly 9 years now... I can proudly say I have never injured myself on an airplane. 

But I did have to push a full gastruck away from a taxiway so planes could go by once... that left me quite sore the next week. 

Oh yes, and I curse those blasted C-150 wheel pants!!  Gggrrr!!  It's impossible to put air in the tires with those stupid things!  And I'm not talking about the ones that have the little access pannel in them.