Siri and Alexa walk into a bar: How AI assistants found their funny bone

Virtual assistants like Siri and Alexa are useful for a lot of things, like telling you what the weather's going to be or reminding you of an upcoming calendar appointment. But they can be entertaining too, providing the occasional fun fact or playing that hit song from Beyonce. Or, when you want a little levity in an otherwise crappy day, telling some really corny dad jokes. You've probably heard them before. Ask Siri, Alexa, Google or Cortana to tell you a joke, and you'll likely hear something like this: "I couldn't figure out why a baseball kept getting larger. "What do you call a talking dinosaur?