Twins don't need to marry to get the effect, just having their initials match gives at least quite a problem with some Dutch banks: Postbank, now taken over by ING - which only compounded the issue when one moves.
Posted Oct 31, 2012 23:27 UTC (Wed) by Wol (guest, #4433)
[Link]
Well, when my wife was a girl they had great fun at home. She, her elder brother, and her dad all shared the same first initial. When a letter arrived, it was often a puzzle (until it was opened) who it was addressed to.