9. A Firefly Musical Episode Was Not Implausible
No, Whedon wasn't planning one or anything like that, but the musically inclined showrunner apparently likes to sing on set, and during one break in shooting he started singing the theme from Oklahoma! Immediately, Nathan Fillion, Fillion's stand-in and a half-dozen others joined in, and they sang the whole song through before returning to work. We're imagining a hallucinatory coolant leak on board the Serenity, with feelings expressed through song and, in River's case, interpretive dance.