Love it, and nice work dressing up the end of the blade!
I’ve had the same problem, and also can’t really trust that the bevel is sitting square on the surface as my chair bottoms are usually scrub-planed.
Reminds me of this welding square: https://lasquaretools.com/
Agreed, and I think part of what created this culture is widespread use of public transport. People in NYC are way better behaved on the subway than those in LA, at least in my experience. People in LA aren’t used to having to put up with strangers odd behavior, so aren’t used to modulating their own behavior.