We recently took a course on play as a therapy for canine fearfulness. We were the slowest team in the class at learning to play. It was really hard and frustrating until, on one random day, we clicked! The course is over but we've kept playing... and it's been good for both of us.
In any case, I am thankful for my happy Shyla. She's such a sweet girl who wants nothing more than to make her humans laugh. That's wonderful!