I used to take Boo on "training" walks all the time. We'd do some basic obedience along the way. Unfortunately its been hectic and I haven't had a chance to take her lately. Maiden is unwalkable, if that makes sense, with me right now. Even though she's half the size of Boo, she's a massive puller. I have to get her fitted for a harness and get her into basic obedience. When these two start in the house with the rough-housing, I stop both of them and tell them "no". Should I just let them go and get it all out??
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Boudreaux was a pretty good puller too. After two days of walking and getting our arms nearly pulled out of socket, we went and got a prong collar. Â
I LOVE THE PRONG COLLAR!
 Yes it looks like a torture device, but it doesn't hurt (my "daughters" BOTHÂ
had to try it on their arms to be sure, as did my sister-in-law). The very next walk, after about a minute-literally-the pulling stopped and hasn't returned. Our petite 12 year old can now walk him. It was the
best $13 I have spent in ages!
modified to add: I would not let them go at it and get it all out. If it is just playing, it will let them learn that rough-housing indoors is ok and for big dogs it is just asking for something to get broke. Again, opinion.