So I asked Siri "How much can a woodchuck chuck if a woodchuck can chuck wood" today. Usually, on older versions she would say: "Can't we do something else?" or something like that, but what happened on iOS 7, she said:
"A so-called 'woodchuck' (correctly speaking, a groundhog) would chuck -- that is, throw -- as much as the woodchuck in question was physically able to chuck (ibid.) if woodchucks in general had the capability (and, presumably, the motivation) to chuck wood."
That may not be funny to you guys, but it is funny to me. It's like reading a dictionary.
EDIT: Well might as well say what was your funny Siri happenings, be it on purpose or by mistake.