1/ At 15 worked for a builder offered an apprentice but went on to become professional student then odd jobs.
Then Maths Science teacher,
House renovator then worked down the docks.
Chemist in a precious metal refinery
Too many fumes so bought a plant nursery in bush
Back to working for a tree surgeon for extra money (been doing this since student days)
Back to school to be a qualified arborist (in the first lot trained in Australia)
Got a Lucas Mill to save some good logs
Got a wife put her through medical school as a retirement plan after she specializes she leaves.
Now after 3rd degree she's doing masters in philosophy and doing drama.
I'm still making saw dust in many forms.
2/ I do like it most of the time, but hate trying to repair trees after tree loppers and working for idiots.
I write a lot of tree reports now but will probably climb trees till I die.
Used to be into computers a bit but I'm told Fortran is not used any more.