It's best when someone you don't like (particularly someone with some level of authority ie a teacher or boss etc) does this but they can't do it very well and the pen goes flying across the desk. We had a teacher who always did this when I was at school and it greatly enhanced many a lesson.
― jamesmichaelward (jamesmichaelward), Wednesday, 30 July 2003 08:19 (twenty-two years ago)