True, my own is from His Majesty's Dragon second book. Where the handler discovered that his dragon has been stealing livestock (even if it was meant for the dragons) and taught how to do it to others. When the dragon made a statement of having to chase and count sheep. To which the handler just remarked "By the heavens" and started laughing.

I at first didn't realize why, then few sentences later it hit me why and I had to pause. Granted the first book has few amusing moments too.