Or, ask Siri to answer, "What's zero divided by zero," and she'll give you a bit of attitude. Siri has other less well-known tricks, too. One so-called Easter Egg surprise has her dropping a beat.
If you ask, "Siri, can you beatbox for me?" she'll respond with, "Here's one I've been practicing." Then, Siri gives you her best, "boots and cats."
Check out this video of Siri beatboxing. Note: In case it's not obvious from this video, beatboxing is when rappers make the sound of percussion instruments with their mouths.