One of the first things I recall my parents telling me is a bully wants attention. Don't react, don't engage, and they'll lose interest.

I did this at my old workplace where people would get enraged. I learned not to interrupt and not even try to be empathetic no engagement at all.

People are like cats they only react to stimulation.

Even for love today being Valentine's Day I recall a saying, "the opposite of love isn't hate it's indifference".