Customer: HI! How are you doing? Remember me?
Me: (thinking) Uh...no..um...no?
Me: (completely blank expression on face)
Me: (thinking) Did we take a class together?
Me: Uhm...it's on the tip of my tongue.
Customer: Oh, it's OK. You helped me a couple of weeks ago.
Me: Uhm...great! What did I help you find? How did products work out for you?
Man, I just hate that.