secret identity tradition

Every Butch I've ever met 
is secretly named Claude. 
And most of them seem 
Butch enough, but still -
somehow seems flawed. 
If it's some kind of Jack/John
deal - how so, on such small
scale? How many other pairs
like this in secrecy prevail?

I've never even met one Claude,
aside from Butches found. I bet
Claude's life goes differently, 
when Butch is not around.