'My partner and I were in absolute shock': After owning home for 3 years, entitled realtor still lets herself in unannounced

If my roommate and I are both at home and someone started to walk in, I'd immediately think it's a burglar. I mean seriously, who just lets themselves in someone's house nowadays? If it's a family member or a close friend, we typically get a quick text that they're stopping over. Or at least a knock! In this OP's case, it's not even family or friends that are barging in unannounced. It's their realtor. From three years ago. I know relators like to keep in touch, sending cards or gifts every now and again. I just got a holiday card from my old relator this week, actually. But would I ever expect her to walk into my house? Absolutely not. 

This entitled realtor not only tried to let herself in but also did it while it was dark out. Talk about giving someone a heart attack. This OP quickly took to Reddit to ask the internet what to say to her realtor to politely ask her to stop, only to be bombarded with comments telling her she was underreacting to the situation. How would you react?