[dcasper70]

I don't see as big a problem as the other responders, I mean, you're just there to have fun. If you run over the game enough times, either the game will die, or you won't be welcome.

Your friends are obviously not as good as you, don't have a high loss tolerance, or both. I see three primary options:

1) Use these nights to practice different strategies.
2) Teach them a little each night so they get better, at which time you'll feel better about fleecing them.
3) Go in with a completely random game plan, like raising all non-suited 2 gappers, or playing all JX hands to the river, or playing every 5th hand blind to the turn.
Basically, artificially handicap yourself with random silliness.

You'd be surprised how fun option 3 is....