I come home every lunch to walk my dog, and a few days ago, I noticed a man sitting in his car in my apartment block's car park. I saw him looking at me quite thoroughly, but he stayed in his car.
I went inside to get my dog, and as I was walking out through my apartment building's main doors (which are locked unless you have a key), he was conveniently standing there, and asked me if I knew where "Jessie" lived. I said no, sorry, and walked away.
About half an hour ago someone buzzes my apartment, I say "Hello?" and the man on the other end says "Jessie?". I say no, sorry, you have the wrong apartment.
Ten minutes after that, I get a knock on my door, I look through the spy hole and it's the same man.
All my lights are on so he must know that I'm home, but I didn't answer because TBH I'm home alone and don't want to answer my door to strange men.
It could be nothing but AIBU to be a bit creeped out by this? From where the man was parked, he could clearly see me go into my apartment as the building is made of glass.