When Sodapop was twelve going on thirteen years old, he worked at a horse stable, where he befriended an irritable horse named Mickey Mouse. Ponyboy Curtis had told Cherry Valance that "He (Mickey Mouse) may have belonged to some other guy, but he was Soda's horse."
Mickey Mouse was a very irritable pony, often kicking other horses and getting into trouble. He would only listen to Soda, coming when he would call and chewing on his shirt or collar. When Mickey Mouse's owner sold him, Sodapop had been very upset, and had cried. Ponyboy wanted to buy Mickey Mouse back for Soda, and saved his money for almost a year. However, Soda never saw "his horse" again. Soda loved Mickey Mouse a lot.