I understand the frustration, but the safe game should favour you. If he is your only action then reconsider and enforce the actual rules of the game. His plan will back fire, and you'll get his 50 back from him...lol.The dope actually thought that I was out of line telling him that I'm not playing with him anymore. He's like, you'll play again... Nope. I enjoy playing actual pool, not those chicken sh!t games.
I have had some shady moves pulled on me as well over the years, but some of my fondest memories is of torturing those same players at later dates. Only players I refuse to ply are the welchers... I don't have time for those who refuse to pay their losses.