Premiered by 1812 in 2021 and currently running at People’s Light in Malvern, Two Outta Three chronicles the unmooring the long-married pair experienced when their only child, Lily, went away for college. The phenomenon of becoming empty nesters is endlessly relatable, and Childs and Greer approach processing it in the way they know best: through song, dance, and a dash of irreverent humor.