I know, I know. But he's an old embittered plumber, (and all too soon you will be too, instead of a young embittered plumber
) I had visions of him sat there in his hovel heated only by a single-pipe 2" gravity system using injector T's, clutching his 24" stilsons tightly to his bosom as he fades off to sleep dreaming of 3" gate valve bypasses and secondary returns like some greasy beoveralled version of the ghost of christmas past...