Your boss leaves their computer screen on and it's showing their inbox. An email with the subject line "your name" is in there. What do you do? Do you click on it? Do you ask them about it? Do you let it go? Do you start worrying? If you ask them about it, they'll know you were looking at their email inbox. -- This hasn't happened to me, I'm just bored and wanted a new topic to talk on. I'm not quite sure what I would do. Part of me would want to open it, but I'd know better not to. Knowing the relationship I have with my Manager I think I would most likely casually bring it up or just drop it completely.