Who are you?

It has all happened to us.  You see someone on the street that you met in passing, at a party or somewhere else, you might have talked briefly before or maybe it was a just a "and this is my boyfriend so and so."  You get there attention and say hi and they don't remember you or act like you have never me.

Now I am not saying that they have to remember you but the thing that I hate is that look that says, "That was random.  How should I remember that time we met?  I don't busy myself with such things.  You are weird for remembering me.  How dare you."  No, how dare you sir, excuse me for thinking you were interesting enough to remember us speaking even if it was just a brief encounter.

Granted, it does get awkward when I start remembering every little detail ("I really liked that shirt you had on...."), or whatever.  But, in my opinion people should feel flattered in these instances, nobody is important enough to feel put off by having someone else want to make you feel special by remembering an experience they had with them no matter how small.