HOW TO LIGHT YOUR DRAGON

A little boy has a problem with his dragon: he's no longer able to breathe fire. What to do? How on earth do you rekindle a despondent dragon's flame? The little boy tries shaking him by his tail, and jumping on his belly, and tickling his legs... No joy. How about goading him somehow? - make him angry, fuel his jealousy... Still no luck. Maybe sticking false flames on the side of his face would work - but, no, that makes it all worse.