Happened to me once. After the check was returned, I went to the restaurant, got my equipment and took a lamp, TV and a few other things in front of customers. Then, told everyone in the business what a jerk the guy was.
Not too bad for 60 plus years on the bandstand.
Had another club owner mess with my B-3. Kept leaving the thing on with the leslie brake engaged. The leslie froze up. I pulled him off the bench when I caught him, beat the crap out of him and sued him for repairs and loss of income.Got a judgement, but he never paid it, and filed bankruptcy.
That was years ago...not advised today.
But, man, it felt good.
Russ