Well above you're talking about "RISK CHARGE" and now you're talking about charging for knowledge/experience. I don't agree with charging extra for risk because if the risk is that great the customer should know about it, and if the customer knows about it then there's no need to charge extra because if you damage it they knew the risk and agreed to it. But charging for knowledge/experience is fine of course... I'm concerned you're looking for an argument where there isn't any. If there were a lot of rugs to be cleaned for that $900 then that's fine... but if there weren't then it's not. That's all I've said the whole time.