Mike Nolan left the band through PTSD due to the near fatal coach crash that they all endured on tour in mid-80s.
So the three remainees duly hired a new blond bloke.
Then Jay Aston left in order to found the Pop Stars for Nazis party.
So Bobby, Cheryl Baker and the new bloke hired another songstress.
But then Cheryl Baker left in order to pursue a career as a caricature of a grating estuary gob - literally talking incessantly but saying precisely nothing for two decades now.
So a then desperate Bobby Gee and the two un-new people hired yet another skirt to replace Cheryl.
Poor Bob then trundled along for years having never left the original band but having to pretend that he and the three appointees alongside him really were Bucks Fizz.
But then the original members suddenly said they wanted to rejoin Bobby's Band. But the ever loyal Bubbly Bob refused to sack the three replacement members.
So Mike Nolan, Jay Aston and Cheryl Baker slyly reformed as a trio and invited along a new bloke as an ersatz Bob to make a quartet and decided to call themselves...Bucks Fizz.
Hence the court case in which Stabbed in the Back Bob - 'et tu Baker!' - won the right to call his 1+3 combo Bucks Fizz.
The other 3+1 simply defaulted to calling themselves The Fizz.
Guess which version of the band sells vastly more tour tickets?
Poor, poor Bob.
Truly stuck in his own Land of Make Believe with pop's version of Trigger's Brush.