I can't help it!
Geoff Winnington-Ball, when he created this Forum, included some sneaky software called
THREADJACKER2000(TM). It causes threads to veer off in random but interesting directions. Do a search for it using the search button to see the results. In a nod to Geoff (

), it remains an integral part of MLU's program.
We now return you to your regular viewing. Thank you Colin.