I once watched a colleague hover over the send button of an email for about 10 minutes. What was she doing? Reading it over and over. And over. I watched another colleague miss a critical launch deadline for a website because he was debating a 5 pixel difference in the size of a logo. That's an unrecognizable difference to most people. I once spent so much time obsessing over a Powerpoint document that I literally fell asleep with my laptop open and my finger on the track pad