The first paper bird landed the book next to your hand. You ignored it, pushing it off your desk so it would fly back to its sender. After that another one came, and another, and another, until six or seven birds sat on your book because you had given up swiping them off the desk. By now your annoyance was starting to get the better of you. You stood up from your seat, walked to the waste bin, and dumped all but one of the birds into it. Whispers erupted in the room around you.