people just have less ability to hear what is happening out there –

That reminded me of back when my kids were little and I bought them some walkie talkies so they could run around the yard talking to each other. They picked up a phone conversation of a lady who use to rent in the house next to me talking bad about me....lol. She had a boyfriend who would stalk the crap out of me. No matter what I did or how quiet I was leaving he always knew I had left my house. One day coming back from the store after leaving through the basement door to try and derail him I was talking to the woman who lived up on the corner, all of a sudden he starts laughing from behind some bushes. I told her you hear him, he's over there laughing. She insisted on driving me a half a block back to my house. That was some crazy stuff. Finally after several complaints to the police they got the landlord to evict them.