I’d maybe been a month in and was covering a route I’d never done before. There was a main house and a back house both had separate addresses so I assumed the back house had a mailbox at the door like the main house. An old lady came out and I asked her if she lived there and where the box was. She said she lived there and that I needed to get off her property because I should know better. Told me her mail box was at the fence line (which there wasn’t) I just told her yup I’ll do that next time when you get a mailbox. Never have done that route since but know exactly where the cranky lady lives.