I remembered this yesterday, after 40+ years!
Students for the Ministry are under the supervision of the Presbytery within whose bounds they live.
At some point, near the end of their academic course, they are interviewed by a committee of presbyters – on a variety of aspects of Church matters.
At my meeting with the wise men of Dumbarton Presbytery, I was asked at one point by the Convener of this education committee about the Sacraments.
He asked – straightforwardly – “What is the element used in Baptism?” To which the answer – obviously – is “water”
Then the daft follow up: “What would the ‘Desert Fathers’ have done then?”
My reply: “I’m sure they would have found an obvious way to extemporise”. Think about it! Then added, “I don’t think that they were members of the Kirk anyhow!”
This humourless Rev didn’t say anything, but I think that I may have been on the cusp of being asked to “get my coat” (or – in ecclesiastical terms to p*** off; as opposed to the ‘Desert Fathers’ p***ing on)