It heavily implied that Hotch was abused as a child, and as horrific as child abuse is, I really wish they had explored more of that or dropped more hints (other than Hotch being more worked up than usual over child abuse cases).
You can only let someone throw so many stones at you before you pick them all up, put them together and build a wall to keep them from doing it again. ~ Makes life much easier. This is so true. Point well taken, and yes I agree!