An interesting thought experiment to me is how much I would be willing to spend to preserve a friendship. Various situations over the past few years, including some businesses with friends made me think about hypotheticals.
In The Prince, Machiavelli wrote that men are “ungrateful, wanton, false,” and “cowardly, greedy, arrogant and mean, and their natural impulse is to be insolent when their affairs are prospering and abjectly servile when adversity hits them.”
I remember hearing as a kid that $2 bills in weren't popular in Western Canada as that was the common price prostitutes charged and the stigma stuck around.