Bob: Hi Sally, I was
just wondering if
everything was ok? I saw you from accross the cafe and, well to be honest you've been sitting there for
over and hour and you haven't moved a muscle.
Sally: Huh? Bob! oh Bob! Thanks Bob, I must have had a bad case of Para-Sudoku-Psychosis. I get like that sometimes when I get stuck
on a
difficult Sudoku.