theres easier ways to earn money using your head,man i know he is a ford trained mechanic and run his own buisness then run a parts buisness for a while then jacked that in and sold cars specialising in a certain small sporty car and always had 10-15 around him so people would always go have a look as they were guaranteed somthing they would like being there.
Anyway he got out of that and into the Dash Doctor game,
the coin rolls in from people wanting there dash boards fixing. Modern cars must be shite the amount of fixing he does especially on lambos,ferraris,range rovers audis bmw's porsches etc etc they all need the Dash Doctor to fix them problems every now and then.
if your happy to fix peoples dashes theres a pot of gold waiting for you dude,or you could be servicing a tired out shitter with oil all over the place and your disposable gloves just ripped again