I think broadwayguy2 meant that Dorothy would wear red colored shoes (sneakers) for a portion of the production as a nod / reference to the MGM movie before switching to actual silver colored slippers.
You need to pay MGM to use the words 'ruby slippers' or use the actual ruby colored slippers. In Wicked the words ruby slippers are not used in the script either (Nessarose's shoes - they are silver in color and when Elphaba enchants them a red spotlight shines on the shoes turning them red
)
The thing is, besides being an utter toad of a human being, Riedel usually has the least knowledge of the topic in the room. He doesn't usually understand the content or approach of a show, and is always completely and unfailingly socially ignorant, which makes it really infuriating when Susan can't get a word in edgewise. A definitive mansplainer; it's always painful when he has female guests. I watch the show sporadically when I really want to see a guest, because it's the only theatre talkshow we have, but it would be so much better without this hateful clown in a dadcoat. (thanks ScaryWarhol)
Updated On: 10/14/15 at 05:20 AM