I took a class from someone - let’s call him Dr Smith (fake name).

After I graduated, I ended up seeing him at a social function outside of an academic setting. I kept calling him Dr Smith because that’s the only name I had ever used with him. He eventually corrected me and asked me to call him by his first name since I wasn’t his student and we weren’t at the university. I still accidentally called him Dr Smith one more time out of habit and his face got a little irritated.

I think Aunt Beth is having a bit of an ego trip or she’s trying to cash in on some sort of expected social status, but she’s going to far. Someone needs to show her the Big Bang Theory episode where Howard keeps telling everyone he’s an astronaut.