User blog comment:JKaffekimbo/Weird Riddles/@comment-4079395-20110426110044

"I guarantee," said the salesman in the pet shop, "that this purple parrot will repeat every word it hears." A customer bought the bird, but found that the parrot wouldn't speak a single word, no matter what the customer intended to say to the bird, but nevertheless, what the salesman said was true. How could this be???

I can solve it, though. :)