Banning the gambler won't do anything good to his gambling habit. He will just go to a different casino or gamble online. What I will do is I will invite a psychologist to the casino to talk to him abiout why is he still gambling everyday despite of his losses and his wife just gave birth. If that doesn't work then I won't be able to do anything for him anymore as it's not the casino's concern why he continues to gamble.

As for the casino worker, that is not enough reason to fire him. He is just concern to the addicted gambler and did not do anything to the casino's profit