My new LB1 Luah,is having a great time with my 7 year old Golden, Jersy. My question to all you dog behaviorists is... should I limit their play or let them play as much as they want. They play wonderfully together, like a mama and her pup, gentle, quiet and fun. I am just wondering if this will escalate and become a real mess when they are both 70 lbs. I try to mix the play time up between "Auntie Jersey" and just me so Luah learns the difference. Any thoughts, experience in this? thanks.