 The carpet in Sids house is modeled after the horrible carpet in  the basement of the house Peter Docter (qv) (writer/lead animator)  lived in as a child. When Buzz gets wacky at the "tea party" he  calls himself Mrs. Nesbit. The name of one of Peters grade school  teachers and in college, he had a Toyota pickup truck pretty much  like the one the pizza delivery guys used. It too had a "YO" on the  gate.