No Pen Intended

I'm (hopefully) close to the point where I have to decide, as a writer, if I want to use my real name or a pen name. I have conflicting feelings. Part of me is egotistical, and wants nothing more than to see my name on a book cover someday. Another part of me is conservative, and wants to keep my current professional life separate from my writing life.

I'm not sure why I feel the urge to hide my hobby from co-workers. Really, what's the worst that could happen? They search the internet for me, find a moderately successful time travel series on Amazon, decide that the concept is so far-fetched that they'll ignore all my industry experience?
Probably not.

Maybe I'm thinking about this all wrong. Perhaps overlapping my writing and my professional life might actually be an opportunity I'm missing. Maybe a potential future employer might search for me online, find my books, and rush to become a customer!
Probably not.