One's particular employment situation notwithstanding, why would anyone care who knows if you have a CHL or not?
As far as I'm concerned everyone should; especially strangers, assume that I have a CHL and am armed and in a defensive mode - which is what it's all about. I got the "concealed is concealed" learnin' from my class, did I miss the "secret" part?
EDIT:
While I'm not particularly concerned with who knows of it, my CHL is definitely not a Batman license.