

https://tnmuseum.org/junior-curators/posts/underwater-ghost-towns-of-tennessee
Apparently, back in the day the government decided that some places weren’t worth saving, and the benefits of building dams and flooding the towns outweighed other considerations.
The movie ‘Deliverance’ has a plot about something like this happening.
In a neighborhood, everyone knows your name. If Joe the Plumber and Fred the Butcher make a bet, everyone has heard it, and the loser has to pay up, or be scorned.
In a bar, the bartender or server holds the bets and pays off the winner, and expects a cut of the pie as a sevice fee/tip.