Can anyone be more verbally abusive than him?

I have an impossible elderly parent. Abusive, toxic, intentionally trying to cause more problems. Appreciates almost nothing of what I do.

I'll continue helping out. I take breaks, not talking to him. No dementia. He's just abusive, years and years. Today, it was particularly bad. It just made me think: Can anyone be more verbally abusive than him? It made me think (of course not seriously) that we should have a competition for the most verbally, psychologically abusive parent.

Brian