Crush and Diamond are having a Ball together,as a Matter of fact I'm P*ssed because they don't wanna play w/me anymore unless i laydown and let them BITE my Ears off, lol.. However just like i remember 13 yrs ago when i got the Last 2 , after about 20-30 min they get WILD, and IDk if there still playin. However when i say " OK THATS ENOUGH' and they stop, they are wagging their tail and the min i walk away they are back at it so i figure there Just Pup playin.. When should i slow them down if i should at all or should i stear away from that Ruff housing Tottaly ? I Never had a Problem w/ the last 2, then again i was Lucky and really they were 2 Excellent Dogs and i really had Nothing to do with there great EGER TO PLEASE atitude that made them Listen so well.