A Jehova’s Witness’s second-worst** nightmare is the Christian religions of the world fireing their corrupt hierarchy, starting over on Bible-based terms, being of some Earthly assistance to each other (g-g-good works), and quietly worshipping God in harmony and grace, but doing it on the wrong day. The horror.
Note: No less an authority than St. Paul advised us to worship with friends regardless of the day they choose. Hmmm. He may have been channeling a Big Guy, kind of badass (cleared the Temple single-handedly) with a Spanish-sounding name who fired the Pharisees, abolished their Law, and sealed a New Covenant with his blood. Badass.
*Kingdom of Heaven, a Ridley Scott film.
**worst: an accountant escapes from their headquarters compound.