difficult child 1 never ceases to amaze me. I'm not sure where this one came from but it is ANNOYING. He threatened difficult child 2 the other day while I was gone (for all of 20 minutes). When he told difficult child 1 that he was going to tell me, difficult child 1 said "prove that I did it'. Yesterday, when he was being a ****, I informed him that I was going to pass this incident on to his CTSS worker. His response to me was "prove it". I politely reminded him that the worker would believe me because I have absolutely no reason to lie and walked away. Sometimes he is too smart for his own good. He knows it can't be "proven" but has the self-centered thinking that if we can't prove it, we won't be believed and therefore he has "gotten away with it". What would you do in a situation like this besides not "forewarning" him of "reporting" his behavior to anyone?