Thanks for the kind words, guys. I wish I knew where this story came from. It just kind of popped into my mind while I was filing reports, and I wrote it during a break.
Boober hasn't made any new confessions about his fear of water. In "Red Versus Blue" he told the rest of the Fraggle Five, plus the three children, why he doesn't swim. "Treading Water" came after that story, as did "Self Help," so both Mokey and Sage already knew. Boober just felt a need to explain more than strictly necessary to justify himself, and the author wanted to inform the reader, because she can't expect everyone to have read all of her previous stories and remember all the fiddly little details.
Glad that Sidebottom's coming across well. I may have a bit if a handle on him because I've done a fair bit of research into Dissociative Identity Disorder, which is the current scientifical name for split personality. I approach Sidebottom from that angle, as a personality fragment originally created to enable Boober to cope with things that he found unbearable. In some real-life cases the multiple was a parent, and the alters had to be kept away from their children. I thought it'd be nice to reverse that and have Sage accept Sidebottom, even to the point she can recognize him and tell him to cut it our when he's working at cross purposes to Boober. Also, many multiples have an "Inner Self-Helper" personality, one who helps keep the system stable and can help the core cope. I've promoted Sidebottom to that role, sort of. In "Trials and Tintinnabulations" he took over when Boober reached the end of his rope. In "Commonplace Miracles" he reveals to Boober the cause of his dread, and then carries the burden so Boober can cope in a very stressful situation. Here he's trying to give back the ability to swim, which Boober had sheared off when he created Sidebottom.
It kind of surprises me that Sage has a few fans. I never planned to make her an important character. She just kind of happened when I put her in stories. Not that I'm complaining.