when i was about 4 i started spending time with my grandad and all the cars he had were crap so maintnance was paramount, if i remember rightly he uesd to shut my fingers in doors, and i caught my finger tips in a fan blade, apart from the minor injuries i didnt lose interest, he went on to actually teach me how to fix them, and 30 years on i still do it, but not for a living. he mainly had fords too. I even remember the local scrap man chopping up a 2 door mk1 escort with an axe!! so he could take it away.