If you got fired over this it's highly likely you said something pretty bad. The only times I have seen anyone get instafired at Amazon is when they have done something that could be deemed as harassment. (eg. making sexual or racial advancements towards a direct report) Anybody else who gets fired for performance reasons knows they are thin ice for a long time.
what is a racial advancement?
At least, I think so. Sometimes the world changes while I’m looking the other way.