I was at my friend's house not too long ago and was looking through his bookshelf. Wedged between various books on graphics programming was "The Seven Habits of Highly Effective People". This was the type of book that I never read, but I thought that I might be able to leech an effective habit or two off of him without having to wade through it myself.
"Hey dude - Is this yours? Have you read this?" I held it up and waved it at him.
"Yeah", he said, "I bought it about a year ago, but I haven't read it yet."
"Oh." (pause) "I'm guessing that that's not one of the Seven Effective Habits then.", I said.