How do you stop a Mormon from drinking your beer on the golf course? Invite another.
I'm not sure I understand the meaning of your comment.  Is it a joke about Mormon golfers?
I'm saying a mormon is not what he says he is. The mormon religion says no alcoholic drinks, but I've seen plenty of them having a beer when they play golf. I just wanted to say how hypocritical these mormons are.
Based on what you have actually seen, it is fair to judge those particular Mormons as being hypocritical, or of not being fully devoted to their religion's teachings if they are drinking beer while alone.  However, it sounds like you are suggesting that all Mormons secretly drink, even as they tell others not to, and you don't have any evidence to back up this broader claim.  It's best to assume that others are fair and honest, unless you have a real reason to think otherwise.