John is the type of guy who watches more cartoons than the average kid half his age, maybe a fourth - an eighth? Anyway, he has a very imaginative side and a high tolerance for silliness.
He would like you to believe all his characters are completely fictional figments of this imagination, but I'd be leery of entering his garage without someone accompanying you.
After seeing his premiere kids book series Dragon In My Garage it's the best advice I can give. Oh, and check out his stories for a little fun, adventure and of course - silliness.