So this will never happen again, some simple rules about Goods and Services.
When you are purchasing a GOOD (such as shoes, clothes, tomatos, melons, whatever) the rule is The Customer Is always Right. You can be as rude as you want, as sarcastic as you want, as grammatically whack as you want, you will always be Right. And you will almost always get what you want.
BUT, if you are purchasing a SERVICE or a GOOD-and-SERVICE (such as dry cleaning, body waxing, getting room service, a lube job, or getting your cable installed,whatever) this involves another party. A party that has feelings and freewill. Freewill you have no control over.
So when you go to an mp, you are definitely purchasing a SERVICE. So if your mpa enters the room late and in a bad mood, the first thing NOT to do is say something rude or sarcastic, and don't complain. It just leads to misunderstandings.
So batboy, you said your review, quit the crusade and stop blasting this one particular mpa, we understand she was rude to you.
Next time just remember to be classy, and nice, no matter how hard it is. Just be nice. That way if an mpa is rude, you've got all the reason to be giving a bad review, and everyone will be more simpathetic to you.