Does back yard play biting and chasing between my dog & my son’s dog contribute to more aggressive chasing?

Hi Cindy,

I have just ordered the DVD on training with an E-collar and hopefully I'll be able to use that to answer part of my question. I have a well-trained yellow lab/husky mix (the dominant dog), and introduced my son's 1-1/2 year old stray (very little training) into my home. Both dogs are 60 pounds, get along well, but engage in chasing and play-biting behavior, running around and nipping at each other's necks and legs and mouthing each other. No one is getting hurt. Is this normal for adult dogs or should I be nipping this in the bud? I found a fenced soccer field to let them run but the new dog evidently picked up a bad habit from my son's other dog of hard-run chasing and lunging at the neck. It looked just like a National Geographic special where a predator is bringing down game. I'm not going to let them run together again until I get the DVD and learn how to stop that with the E-collar. My question is, does the back yard play biting and chasing contribute to the more aggressive chasing? Do I need to stop that in order to effectively stop the more aggressive chasing and lunging or is play-biting normal for adult dogs? Thanks for your help!

Lorna