So, you've managed to find yourself in a situation where you're stuck with your ex's ex. Congratulations! You're a true whippersnapper.

Don't worry, we've got you covered. Here's a quick rundown of the dos and don'ts:

• DO: Make small talk, but only about the weather or sports.
• DON'T: Ask about their ex's new relationship status.
• DON'T: Complain about your ex's ex's cooking skills.

And remember, it's not about you, it's about your ex's ex. Be kind, but firm.