I recently came across this lovely blog: This Is Not the Six Word Novel. Jen Campbell is a writer who works in a bookshop in the UK, and whose blog series "Weird Things Customers Say in Bookshops" has recently scored a book deal.
I won't reproduce any of the quotes here, for fear of copyright et cetera, but trust me - they are GOLD. Check them out. In order to whet your appetite, here are some hints of what you might find: