"Fuck fist fights and lame scuffles, pillow case to the face make the shell muffle, shoot his daughter* in the calf muscle"

*(if he has one, if not any close family member will do)

Or so said Notorious B.I.G. I am not a pure playa wigga gangsta rapper unlike phil, so would just ask for my money and have a calm sensible chat. No point in getting arrested as well. If he don't pay, play nasty. Thermite is easy to make and will go through a car bonnet, block and axle for example. Or the classic "turd in a paper bag on fire on his doorstop" will sure cure any attack of goof-around-itis he is suffering in not paying you what he owes.