Siblings fight. It’s the nature of life. My children adore each other most of the time. They spend hours reading, going on imaginary adventures, coloring, “cooking”, playing card games and creating entire worlds for themselves. They are mostly considerate and kind to each other. However, in the midst of all the love, there are times when they go after each other like Ali/Frazier. Is that a good reference? I hope so. It’s pretty much the sum total of my knowledge of boxing. So, really, I have no clue if it even makes sense. But I’m pretty sure those two were fighters, who fought each other at one point, as my kids did today, so I’m going with it.