Always always always close your tabs. Double-check what icons are there in your control bar, keep track of what icons are on your desktop, and generally make sure that you have nothing incriminating, embarrassing, or humiliating visible that can distract from the screenshot that you’re making. Do this every time.
Every.
Single.
Time.
Moe Lane
PS: Yes, I saw that story. This is me being exceptionally kind. After all, mercy is the mark of a great man.