As Dorothy,tin man,scare crow and the cowardly lion are skipping the yellow brick road or where ever they are Todo is not where they are. Yet in the next scene Todo is in Dorothy's hands or next to Dorothy.
I find it funny that in order to post comments you must use proper English, grammar, punctuation, capitalization and spelling, yet the title of this slip-up is the Mistory Dog instead of Mystery.
Notice that whenever Dorothy and the gang are singing and running and skipping all over the place, Toto is way behind, but always finds them again. He's a dog..Hello! He can follow Dorothy's scent because she is his owner.