"Take yer hat orf in the House of the Lord ...."
How very appropriate in such a thread, bearing in mind the origin of the word "apocrypha", and quite apart from the fact (sic) that this tale is clearly tri-service. The dark blue version is often quoted as having the "original" event take place at a major service at Rochester Cathedral, with the Chief GI bellowing in similar terms at the very junior sailor who is so overawed by his surroundings that he forgets to take off his cap as he marches into the cathedral.
Jack