Allready?!?

So today has been a day of the boys teasing each other and wanting the same toy! At one point they were wrestling over a toy truck. Brad had it in is hands and Jensen was trying to take it (as he often does). All of a sudden Brad whomps Jensen on the head with the Truck and get up and runs away. I held Jensen for all of the 10 seconds that he cried. Then i see this look in his eyes... the next thing I see is Jensen raising his hand above his head (in the getting ready to hit mode) and runs towards Brad. I ofcourse say to Jensen, "Jensen I know what your going to do, please do not hit your brother back" he stops to look at me (hand still raised) and then hits Brad on the head. He seemed satisfied that he hit him back. The look on Jensens face was kind of a "ha! take that" Brad wasnt even fazed by the hit on the head and walks away. Jensen then looks at me like, "wait, wasnt he supposed to cry?" type of a look- dissapointed I guess you could say and walks back to me. I was trying not to laugh. I cant believe that I am allready dealing with this. Lol.