I have a 5 yr old fe rat terrier, very energetic, but also will settle down when told, except when engaging in high energy play, which usually escalates quickly. It takes a long time for this dog to get tired. I always have to stop after a while & I know she's getting tired, but won't stop on her own. I've been walking her to the beach in the evening & I throw a toy after she sniffs for a while, but she keeps getting more wound up & keeps jumping up at the toy for me to keep throwing it. I just have to keep it out of her sight & keep walking. I don't have a yard now, so I have to limit this kind of play outside. I'm wondering if I should just not start this kind of play with her.