Don't want to gloat, but I used to get £60/day for marshalling. I dont anymore, because I got a raise to 70
Your boss is a cock, and you can get better paid work elsewhere. Unless you get benefits from him, such as cheap paint or kit or training, why bother? If he doesn't, I'd recommend stealing. No way in hell I would from my current job (because I get paid more than enough) but if I got pittance then I would reimburse myself accordingly. You're already on bad terms so what is there to lose?
(not responsible if you get fired/beat up as a result...but I am serious about finding other work)