I've never heard of Dirty Des. Des / Desmond was the name of a good friend of my parents so I grew up liking the name. Also, "Desmond and Molly Jones / Obla-dee obla-da (etc.)" of Beattle fame helps the name out in my head.Thanks for the feedback. :-)
Growing up, Desmond was the name of one of our cars, DesmondVincent to be precise as it's number plate had DVH (H is the letter our surname starts with) on it :)