Fathers, masters and donkeys
After persistent requests, one day one of us found himself having to explain to the engineer father what was 'really' his job. Until that time, in fact, the elderly parent never found, in the undeniable industriousness of the son, nothing that looked like a 'real' work.
He went for broke, but couldn't get nowhere: none of the activities described seemed to have the suitable standards.
Then, suddenly, the illumination, "Look, Dad, I do what clients tell me to: I attack the donkey where the master wants me to". The father, finally convinced nodded his head in agreement, smiled and left. It's true: when the situation gets hard, there's nothing better that the ancient Neapolitan knowledge to take us out of troubles.