on the wall in our kitchen hangs a sign that says: the cook accepts tips not advice

in that spirit here's a tip - don't pay by the hour, pay a fixed fee per completed job: piece work - this how I operate; I don't tell people how long it takes me to do something, they don't ask / tell me their guestimate; it saves arguments; I don't have to explain why it took a couple of hours to draw boris johnson but three days to do mitch mcconnell, and then have grief sorting out what should be paid; all that is needed is a deadline, if I miss it I get nowt [ziltch]