[Lil Bastrd]

The best thing for a puppy is to interact with all types, ages, and sizes. I always make sure that my pups are around grumpy old dogs who growl and snap, playful puppies, rough adolescents and so forth. I do however monitor the play and only let them play for a couple of minutes then get the pups attention then let them go again. This ensures no one gets too excited as the play continues. An encounter with an aggressive dog will not cause your dog to be aggressive. Your reaction is going to be what shapes the dogs reaction to this. if you just end the play that is getting too rough and move on with your dog getting him to do something else (and praising) he will forget about it in a second.