"Size matters not. Look at me. Judge me by my size, do you? Hmm? Hmm. And well you should not. For my ally is the Force, and a powerful ally it is." - Funny Yoda pug dog costume aka Star Wars pet costumes.
Giddy-up. On a more serious note, have you ever seen a large dog in the street and thought "WOW! I could ride that dog because it's like a horse!" Well, toddlers can exclaim that to a larger pool of dogs.