“I’m just a girl who cain’t say no…” Allison Janney has broken out into song. This one is from the Rodgers and Hammerstein classic Oklahoma!, sung by the coyly promiscuous Ado Annie—a role for which, when you think about it, Janney would have been perfect casting once upon a time. Don’t worry. The dire state of quarantine hasn’t spiraled to spontaneous showtune combustion, at least not yet.