Being relatively mechanically inclined, I find that my mechanical skills are put to use quite often in areas other than aviation. On one 3 day trip to far eastern part of Bolivia, I helped to install a screen door on a church. The hardest part of getting the sun to come out and recharge our drill batteries via the solar panels.
More recently, I completed my 3rd air conditioner installation. Living in the tropics has made me an expert, along with moving every year, I am averaging one installation per year! As I joked with some of my friends, my life motto should be, Making the world a cooler place, one A/C at a time.