Rule #35: We do not put foam letters in our brother’s bottom.
Thanks, Laura H.! Laura also mentions that although her children are now 16 & 13 and bathe alone these days, they still remember this rule from a decade ago.
I am the Meanest Mommy in the Whole Wide World. I am forced to make rules & observations that I never knew would be necessary before I became a parent.
Rules by the Meanest Mommy in the Whole Wide World 
Jonas tried to give Milo an enema with a water toy once. Not pretty.
Apparently, this is a universally needed rule.