What if, for example, your friends opponent raises his 30 - 36 dollars raise on the flop? Say to 90 - 120 dollars. At this point I think we need to look at the possible range of hands for the opponent and whether or not they could possibly have a 9 high flush beat. As far as I am concerned both your friend and his opponent were playing with fire. In the same circumstance when your friend had 9h 6h his opponent could have been playing 10 h 8 h niether of which are really good hands and normally worthy of a raise or raise call.
My point here is that playing low flush cards or even straight cards can get you in major trouble as seen on this years world series. An early position 3d 5d raise is called by a late positon Qd Jd and the flops is all diamonds. The flopped low card flush is a killer here where most players are likely to get all there money here and lose. I've learned through experience and examination that these low suited cards are bound to get you in trouble i...