Tempie was never too terrible, but she got a nice off switch when she was about 8 months old.
Boone was born with an off switch. I never even had to work on it. He can be up and going crazy with tug, doing all kinds of tricks, bouncing all over the place after a ball, or whatever at work... And then a customer comes in, and he just curls up behind my register and watches very calmly while I work.
Raja. Oh, Raja. LOL
She has always been my problem child. The Terminator Dog almost never sleeps. But she STILL has an off switch. Took me about 2 1/2 years to get it mostly decent. But she has one. She may never shut her mind off, she may never WANT to settle down... But if I ask her to, she will. It just took a lot of work. Now she can go out and be her bonkers self, but she can also settle down and leave me in peace if I need her to.