I played years back and I'd end up being in a tournament, and I'd have pocket aces and go all in. Someone with pocket 2s would call me and then the cards would flip and two additional 2's would magically appear and I would lose my ass.
Turns out they were sued years later and several people arrested for fraud.
After seeing that fraud and losing chunks of money, I have never played again.
What I used to do is go to the casinos at Niagra Falls. Find a table with all college kids on a friday night, sit down for maybe an hour. Slow play until I hit for $3-500 bucks. Then get up and leave. Everyone would be pissed but this in itself pays for the trip and a nice dinner LOL.