They didn't, so I won't.
nishio: a: "Mr. B didn't do X to me, so I won't do X to Mr. B either." Mr. B: "I won't X Mr. A because he didn't X me before."
There are many people who do not act but claim that they would have acted if condition P had been met, and many of them say "if condition Q had been met" even when condition P is met
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