FFS, it’s called a price for a reason.

If it were up to me I would turn the fucker around. Maximum listed on the menu, and if the customer behaved like an actual human being instead of an entitled prick, their final bill would be reduced by up to 20%.

Why are you drawing your curtains? You must have something to hide. All your neighbours live in glass houses, why do you insist on this strange idea of privacy? Open up, if you’re not guilty there’s nothing to be afraid of.

Only guilty people draw the curtains.