[Discussion] How old was your dog when they started to mellow out?

My pup is 2 years and a couple months and is still ready to party pretty much 24/7. Its fun and welcomed most of the time - but when do you think he will start chilling out a bit? Curious to see when you all saw a change in your pups!edit: My dog appears to be some sort of herding dog so I know he will always be a bit higher energy but still curious via /r/dogs http://ift.tt/2sn0V0Y