Not many people know this but Reeve Tuesti is a coward. He was too afraid when he was a kid to stand up to the bullies in his expensive Healin region prep school. Too afraid to stand up to his father when he wanted to go to law school instead of being an engineer. Too afraid to do anything to stop Shinra from using his earthquake safety measure to kill half a dozen terrorists and countless innocents.
He hates himself for it. His father would yell at him for not having a backbone while his mother comforted him. At night, to relieve the young boy Reeve's mother would tell him the story of the courageous cat king Cait Sith. The character, based on young reeve's favorite doll, would prance around in fine boots and wear a cape and crown. Where ever Cait went, he would right wrongs in secret leaving the evil Mayor Grump, (who looked quite a bit like the elder Tuesti) scratching his head. Reeve never forgot Cait Sith.
Reeve kept the original doll. It would sit on his desk daring him to be brave. In Reeves mind the diminutive king would bonk him on the head whenever he passed a beggar on the street, or let an unsafe building untouched because of expenses. No matter what Reeve did, whenever he was cowardly his black and white conscience would scold him.
When Tseng asked reeve why he needed the small machine room the Turks had so often, Reeve was bonked rather hard.
"Tell him the truth, ya big palooka!"
So he did. And a month later CS-01 was deployed to Gold Saucer. And in the robot was everything Reeve wanted to be. He would spend hours monitoring his creation, occasionally taking control to ad a witty remark or perform a tricky maneuver in battle. And he stopped passing beggars. And a construction company was indicted on neglect charges. And finally, Reeve did something foolish.
Something Whimsical.
Something Brave.
He saved AVALANCHE. Or Cait Sith did. Because Reeve Tuesti is a coward. He still fears WRO board meetings. He is terrified of guns. He sometimes wants to just stay in bed and not have to take the whole worlds problems on his shoulders. But he doesn't.
Because if he did, then Cait Sith would Bop him.