Radar (1 yr old) and Cooper (6 mths) are going at it all day long. Alot of this is play but sometimes it gets alittle out of control with them chasing through the house. Once in awhile they go at it like they're killing each other and I have to pull them apart. I give them a time out and put one in a closed off area, usually Cooper because he starts it. They definitely tire each other out but it's driving me crazy. Radar is neutered and Cooper just got neutered. Is this how two males are?