Second, your personal view, quoted at the top: "It's a sin for a Catholic to worship alongside heretics", was a very general statement which did not hint at any exceptions. Now I see that you would countenance an exception: mixed marriages. Any others?
Thank you for that clarification.
What about a Catholic praying and worshiping God at the bedside of a dying veteran at the VA hospital, for instance? Or a Protestant praying at the bedside of a dying Catholic vet?
I ask this because I am a volunteer to sit with the dying at the VA Hospice here, and I see it pretty frequently. None of this is the same as an "ecum4nical Mass," whatever that is. I would think that would be troubling to the theological principles of everyone all 'round.
How do you feel about Assisi I?
Did you really "type" it? Or did you cut and paste it? Let's be honest.
What about? I would pray for his/her conversion to the One, True Faith before his/her expiration. That's the Catholic "thing" to do.
If I was the vet, I'd ask for a Catholic priest.