My pick is gambling, I do agree No show jobs is a tie.

I had a job like that years ago, Wild Bill Cutolo put me in the Masons Union as a class A mechanic and never even seen a bag of cement mix in my life.

I would go to Job locations when instructed ( not by WBC) but then go off site and do other work with other guys for different people.
It was fuckin Great and I loved that job and thought WBC was an amazing Man to know.

The Mob is proof that gambling was an easy way to make money , it was fool proof when managed properly.
The idea that states took over OTB and lost money shows how more corrupt government is worse than the mob.