This was a BAD call, first of all this is a friendly game that means you don't look for ways to win without having the best hand, you let the cards do the talking. Pure and simple it's Bullsh!t and if I were that guy I wouldn't play at your place again.

It's a totally different story if were are playing a big tournament here with a $1,500 buy in than you have to not only follow the rules to the letter of the law, but makes sure nothing "appears" to be a violation either, in a home game, you just go on your gut and what you know is right, and you went against that this time for some made up rule anyways.

Next time tell the whinning loser not to call all in with two pair with a flush draw on the board, what does he think a player is going to all in with this tournament life on the line, on a bluff? Mr. Two pair deserved to lose for that very reason for making a dumb call