Deadly Humour

I thought of this one as I was driving to the "MVP Pie and Pint" event yesterday evening in York (thanks Lorna and Akim for a great night by the way). In the end I decided not to tell it. See if you can work out why...

"My new computer crashed and all you did was send me a plastic raincoat for my rabbit!"

"Ah yes, that is because it comes with our new bunny mac guarantee"