Officially:
Electronic Engineer - in what seems like a previous life I used to maintain/ repair torpedo guidance/navigation systems.
Now communications and IT, mostly installing and maintaining office telephone systems and data networks.
Unofficially:
Jeeper
and home mechanic - grew up in a house full of em - Grandfather was, father was/is, brother is, friends are. I learnt by doing all my own work when first into cars and would have been shot if I didnt
First time I have bought a new car and now pissed that I have to pay someone else to change oil just keep my warranty valid...