Don't tap the Tank -- How do you handle this.

[Howard Beale]

Here's what I do:

Sometimes seat 7 will be the type who is playing the way he is with the goal of making people like seat 4 'insane'. As odd as it may sound there ARE some people who come to play poker to get their jollies that way. You don't need to comfort that type at all. As a matter of fact a 'Congrats! You're making them all nuts!' is in order.

If seat 7 doesn't appear overly disturbed by seat 4's berating I'll just keep repeating that different people play poker according to their own styles and, since it's THEIR money, they can do whatever they want.

Most commonly seat 7 will be a totally horrible player, unaware of how bad his play is, and doesn't like being told so. In that case I try to find ANY justification for the way he is playing and praise him for it more loudly than seat 4 is telling him off:

'He had a double-runner-runner gutshot'
'He flopped bottom pair and could've caught trips'
'He's really good at reading hands'
'He thought you were bluffing'
'He's on a tremendous rush. I'd play exactly like that if I
was on a tremendous rush' etc.

Lastly, you can just tell seat 7 outright that 'we are all here to have fun and don't pay attention to the nasty guy in seat 4 who's making all of us feel bad.'