Agile and Scrum failure stories

Dear fans and readers,

I’ve now started writing a talk entitled Top tips to ruin your agile process. It is my intent to run the audience through the worst things that could happen to a team when they implement agile.

I have a fair share of miserable failures at turning (or keeping) a team agile, but I am now asking you to help me. Everyone has failed once or  more in being agile, and I hereby plead for you to give me your horror story.

Feel free to do so below, the comments can be made anonymously :)