When in the course of human events…

we encounter stupid or mean people ( often they are both)

The best, the only defense…is to do the right thing. The non-specific right thing, which you would have (or should have) done anyway

Doing the right thing is the best defense anyway.

It’s impossible to anticipate which specific way the stupid and mean things will arrive. There is no way to think of enough rebuttals to cover them all.

The only way to proceed is to simply do the right thing.