Just got a message from another guy RE the in-house games, I hope he doesn't mind me posting it, but I've cut out part so it's not obvious who it is:
I'm sure some people won't care about not playing with the noobs, and would be thankful if we didn't bugger up the in-house games by making stupid mistakes. But if the attitude from certain people doesn't stop, then you'll be lucky to get an in-house going because you'd have scared the noob players off.
I'm noob and I've not really experienced anything to really put me off in in-house.
If I learn one thing a game it's all on the way to getting better. I make a lot of mistakes, some costly but most are just missed opportunities. I don't play with much aggression which is probably and confidence thing.