I'm guessing you'd have to make the owners exercise and give them some basic training as well xD
Kidding. Anyway, those are good tips. I have to get a new Kong. Ours mysteriously disappeared(dog probably accidentaly threw it off the balcony lol).
I think teaching just-for-fun tricks helps as well. Keeps them busy memorizing things. "Old dogs don't learn new tricks" is a complete lie. Just do clicker training and you'll have any dog doing weird stuff in no time
