Malone and Emerson play together all the time. They play rough and tumble, romp and wrestle, bite and growl. Usually they are just fine, but once in a while, it gets to a borderline of agression. Real baring teeth, and real growls.

I get concerned about it, but Mark always downplays it, and says it's normal, it's natural and don't worry about it.

Well tonight, I was brushing Emerson outside, and the brush caught on something. I looked, and he has this big open mark on his side, and I had ripped what was the beginning of a scab off. It's about the size of a quarter.

So anyway, my question is, can their playing get out of control and become agression? Is it normal, and something they just have to "work out"? Should I allow them to play, and just make them stop when I notice that they are getting out of control???

Any advice is appreciated!!