Tipped

So here is another thought I had to mention.
What is up with me and restaurants? There always seems to be a problem.
So a few days ago some friends and I went to 7 West, on Charles, great place, nice food, nice people...so we thought.
So the meal was good, service was alright I guess, atmosphere was quiet, it almost felt like a perfect night.
As we were leaving, we hear a loud "excuse me" coming from up the stairs and footsteps running down towards us. It was our server...with our bill. So puzzled we stood there thinking we didn't pay her enough and I even stood there taking out my wallet.
So she counts our money again and says we didn't leave her enough tip.
Wait...what? Servers are allowed to do that? They have the right to tell you how much you are supposed to tip them and when you didn't tip enough?
So we just stood there like, what the hell and then she makes the problem worse.
She makes a big deal about how it looked like she didn't do a good job? (All you did was give us food and we didn't ask you for anything.)
And it wasn't even like we DIDN'T tip her, which everyone around us was probably thinking as they stared at her surrounding the three of us.
So we are still standing there, looking at one another with awkward faces as this server complains about her job. My friend then says, "that is all we have," and this server has the nerve to say, "well for the future, bring more change and have more money."
We just turned around and left.
My friend called the manger the next night, he said he knew who would do that and this would be the first and last time.
Too bad if she lost her job, in the restaurant business you can easily be replaced.

I understand her point of view, servers do not make minimum wage and their wages depend on tips. But the problem here is not only was tipping our choice, we did tip her! What did she expect like a 25% tip? They say minimum is 10% and I am sure we gave close to 10% if not less, big woop, don't run down the stairs..

thoughts on this?