This one is quite familiar – I did a variant some time ago:
Grab your nearest book, go the 123rd page, find the fifth sentence and type that and the two sentences after it.
The book is Joe Sacco’s graphic novel Palestine; I’m equating a text box with a sentence and assuming that the order is strictly top-to-bottom and left-to-right (it would be rather hard to do this with some of my other comics).
the kids are running
hurling stones over the bus