When you get a wound, it's often a good idea to disinfect it. Do you wash your wounds with bleach?
When you are engaged in a conversation is it a good idea to crater the conversation by myopically focusing on one minor detail, to the detriment of everyone else?
When your point is defeated and you were wrong, maybe make a new point instead of being hung up on how anyone who points out your blatant lies is nitpicking and focusing on minor details.