Here's 3 good reasons why I've not contributed any to that category
She came into my office like an airship fighting an ungainly battle with flying monsters.
She came into my office at just the wrong moment - I was enthralled with the thread I was reading on my favourite forum and didn't need the distraction.
She came into the office and the noise of the door opening distracted enough that I clicked the wrong square in Minesweeper, causing me to yet again not beating my secretary's implausible best score