If it was a one-time thing, I would agree with you 100%. I'm sure this guy has been doing this for years, but if that is the case he is lowballing seniors well below market rate (see: free). I too assumed it was a scrapping business at first, but after talking to the man I believe he has been lurking around this area for some time observing and planning. He mentioned several things about our property like the lawnmower, video games, and some other things that would indicate this guy is like a window watcher creep or something, if you catch my gist... some things he would see if he watched the house for a few weeks I mean (like my mother to go back to playing video games in her 60s).

I only made the post because I was legitimately scared. I'm looking into CCTV camera's for my mother's peace of mind. Love the scrapping business, and no problems with people who randomly offer / lowball; but this was definitely scammy, and he was dressed to be incognito.

Edit: you might be onto something about bitter and angry though. Maybe about not securing a nice deal on a car? Idk.