I am mystified by the identities of the various Mr K's ...

So I shall simply recount the most embarrassing acknowledgement of applause I have ever seen, which was at a pre-Christmas performance of Messiah in Christchurch Town Hall, New Zealand in the early 1990s.  After the Hallelujah Chorus (which had begun with a New Zealand audience of considerable gentility - Christchurch is in many respects Hyacinth Bucket's antipodean spiritual home - in entertaining indecision about whether they should stand or not), the conductor ostentatiously kissed the score and then held it up like a football trophy and displayed it to the audience with a theatrical flourish.  A horrible, utterly false gesture lapped up by the audience and the local press the next day.