How many different grudge types are there, and how should we classify and arrange them? This week Sophie takes a look at some everyday grudge varieties as well as some rare specimens.

Tweet us @GrudgesAre Great if you can think of any sub-genres of grudge that have been overlooked!

Sophie's new book HOW TO HOLD A GRUDGE: THE POWER OF GRUDGES TO TRANSFORM YOUR LIFE is available now in hardback, eBook and audiobook. Buy now http://smarturl.it/GrudgePodcast

The How to Hold a Grudge theme was provided by Annette Armitage, a composer, musician and teacher, and co-writer (with Sophie) of two mystery themed musicals: THE GENERALIST - A MURDER MYSTERY MUSICAL and WORK EXPERIENCE - A MUSICAL LOCKED ROOM MYSTERY.