Thanks.
I’ve seen a few interesting videos:
https://www.youtube.com/watch?v=QejXGw4ExWA
https://www.youtube.com/watch?v=rJphtTTfNZ8
And of course, there are some hilarious ones; I had to sit through almost an hour of one, before being introduced to ‘The Church of Our Lady of Internal Combustion’.
(which seemed to make it all worthwhile):
https://www.youtube.com/watch?v=MNf16TzZ1xM