Or, "Whatever we can do to keep them from fighting with each other."
Benjamin's gotten very into helping Frédéric cook lately, something that had been Noah's domain for the past year or so. I asked him why the renewed interest. He told me, "Because when I am big, like 38, I need to know how to cook!" (It is with great relief that I note he plans to leave home by at least age 38.)
So we put them both to work cutting up the mozzarella for Noah's birthday pizzas.
They learn to cook, they don't fight with each other: win-win!