I get people coming up to me a lot, saying "Hey, real name, remember me from _______?" I will remember the face, but not the name. Or, I meet someone, then the next time I see them I've forgotten their name. Does this happen to you?
I usually just say ' Yea... um , hey... you should go get checked' and walk away. That usually ends the questions
I also just walk away if someone tries to make me guess. I've hung up on people for doing that as well. What if you say no, they'll be embarrassed and that's no fun.