How Kreskin at al find hidden paychecks

Continuing the discussion from The Amazing Kreskin dead at 89:

This shouldn’t fill up Kreskin’s obituary thread.

I have my doubts this is how it’s actually done. I’m not saying it can’t be done that way, but I find it unlikely performers will have their income dependent on that ability. I’d like to see a contract specifying the terms of such an agreement to forfeit pay on that basis.