Sounds alot like what goes on here too! Farley is extremely vocal when he is playing with alot of grumbly growling, deep barking & teeth showing. In fact he tends to put off other dogs when they first meet him until they realize it is all just play. Farley also plays using his front feet, alot like a boxer. As well as Farley & Chloe get along, just as with kids, they will have an occasional spat - usually Chloe being the one getting mad (and can she ever put Farley in his place!
)but all I have to do is say ENOUGH and it's over.