There are even practical ways to allow this type of exchange. However, they require a truly egalitarian business relationship, mutual respect, and signaling mec

There are even practical ways to allow this type of exchange. However, they require a truly egalitarian business relationship, mutual respect, and signaling mechanism to note when to be blunt and when to be decent. If these conditions aren't met, then a subordinate could trivially get fired because they're superior hadn't had breakfast or lunch that day and was just hangry.