The Calvins name is actually original to the podcast. I revisited that episode to refresh my memory and, sure enough, Bever Hopox and Chico Hands are revealed to be stage names used by the Calvins twins.

On the Comedy Bang! Bang! podcast #266, where the Calvins brothers characters appear to have originated, they delve ever so slightly into the practicalities of horse-corpse disposal and the sheer numbers of horses that die over the years.

Absolutely. It's a riveting show: beautifully crafted and patient.

I might have yelled out loud "PEGGY, BURN IT ALL DOWN. THAT WHOLE PLACE." [And I mean "might" literally; my memory is hazy with rage.]

It’s felt weirder and weirder that Felix could keep a home base as everything with Sarah got more complicated.