I have two really big ones. If a customer “pre treats their “spots” or “dirty areas of the carpet” I normally walk on the job. The other one is I have pretty clear limits on furniture I move. One of the things that I won’t move are beds. I broke a bed frame once and I’m never doing that again yet I still have people argue with me when I’m at their home even when they were told on the phone and in writing in my “before we arrive” email. Very irritating.