a case of the 'don't know ya's - When you see someone you know from somewhere else, but they

When you see someone you know from somewhere else, but they act like they’ve never seen you, and you want to punch them for being so dumb.

I saw my old math teacher at the coffee shop and said, 'Hey, it’s you!' He said, 'Who? I don’t know you.' I wanted to punch him for being so dumb.

At the mall, I saw my old neighbor and said hi. She said, 'Who are you?' I said, 'You know who I am!' She said, 'No, I don’t.'

I saw my old friend at the gym and said, 'Hey, remember me?' He said, 'No, who are you?' I said, 'You’re being a total idiot.'