Sometimes they resemble other stuff, which is why we've turned it into a contest.
For example, on 2/14 we played Spam Or Shakespeare. We read a passage and the listener had to identify if it was from Shakespeare, or if it was random words from a spam email. The spam passage was: try astrophysical the indeterminable but quasi , domestic or inquire on louis it brash the marco. The Shakespeare was What is my name? Whither am I going? Where do I dwell? Am I a married man, or a bachelor? Then, to answer every man directly and briefly, wisely and truly: wisely I say, I am a bachelor. It's from Julius Caesar.
On 2/15 we played Dr. Phil Or Spam. This time the passage was either from Dr. Phil's website, or random words from an email spam.
Here are the two passages from 2/15: