On 12/05/2018 13:32, Bob Minchin wrote:

AIUI, once you have been chosen and excused prior to the event for some
reason, you are put back in near the top of the pile and so likely to
get chosen again soon.

Not in my experience of being called and excused for reasons of work in
1979, 1988 and 2001.

Since I retired I have naturally gone 13 years without being called


--
Robin
reply-to address is (intended to be) valid