Can you help build my collection of funny Spoonerisms?

The Reverend William Archibald Spooner served in various positions of increasing stature at New College, Oxford for 60 years. After starting as a fellow, then lecturer and tutor; he served as Dean of the school from 1886 to 1889 and Warden from 1903 to 1924. In his illustrious academic career, he is most famous today for his tendency to get his mords wixed while speaking. He did this so often that the linguistic phenomenon now bears his name. It is called a Spoonerism.

Some spoonerisms are simply slips of the tongue, but many are intentional, and rather amusing. One of today’s Google Quotes of the Day provides a good example. “A magician pulls rabbits out of hats. An experimental psychologist pulls habits out of rats.”— Anonymous

I love such linguistic tricks and collect the best, whether they be deliberate humor or ones that just happen by chance and are equally hilarious. So if you have one or two you love, please share your spoonerisms for my collection.