 And I take him for walks every day. We're usually at about a half hour, and it's around the mile that we walk. And I've noticed that when we come home, he just pops down and goes to sleep and just lays around the rest of the day. I was wondering if that was normal, or should I be spacing the walks out and not going so far at one time, or what's going on here? Now, are you aware of any kind of orthopedic problems, any kind of joint issues that he has? No, no.