Every child who's read the Dr. Seuss book, There's a Wocket in My Pocket will agree with me that this monster is absolutely terrifying:the Vug under the rug. It's scary because it's never shown and Seuss leaves the creature's appearance to your imagination. Leading some children (such as myself) to imagine the Vug as the most horrifying creature in Dr. Seuss history. I always thought of him to look like a giant green monkey with bat wings and huge bulging eyes for some reason (I was somewhat of a creative kid). I think the Vug may have rented my dresser as an apartment when I was 3 years old, just kidding;but I did have a "monster" in my dresser back then like many toddlers probably also did.