Here’s a wonderful coincidence: Norton Juster, author of The Phantom Tollbooth, is also the architect whose firm designed the Eric Carle Museum of Picture Book Art.
I learned this from the profile of Juster in Publishers Weekly which also told an anecdote about Juster’s hitch in the Navy. His whimsical drawings of elves and other fantastical creatures drew unwelcome attention from a commanding officer who told him that Navy men don’t draw elves.
Given the opportunity, I bet that officer also would have told him gremlins do not exist!
[Thanks to Andrew Porter for the link.]