Damned if you do, damned if you don’t.
Working QA/Customer Service for a doomed MMO, we were given strict instructions to not tell friends, loved ones or even coworkers our GM handles lest we be fired on the spot.
If we should happen to use the teleport command to go to a player we knew, we were to be fired on the spot.
If we ever went visible around players, we were to be fired on the spot.
Even indicating to the outside world that we were, in fact, GMs in the game was grounds for termination.
...And a few months later, we were all fired anyway because nobody was playing.