I copied this from my welcome letter as some are confused.

Fridays are a day when people do fun things on the list. These things may
actually not  be VW related,  but we  strongly encourage it.  To indicate
that a posting  is in fun and  may not be of technical  value, you should
preface or suffix your subject with /f [f] or (F). Anyone without a sense
of humor should delete these messages without reading them.