We already knew that the lifelong-devout Roman Catholic JRR Tolkien was extremely dismayed by the changes introduced by Vatican II; but new anecdotal evidence of the extreme intesity of his reaction was recently published:
But when Tolkien arrived next time at services and seated himself in
the middle of a bench, he began to notice other changes than the
language, one a diminution of genuflection. His disappointment was such
that he rose up and made his way awkwardly to the aisle and there made
three very low bows, then stomped out of the church.