Zen was playing Pokemon Mystery Dungon: Blue Rescue Team (he recently got it for $11 =P), and since I had nothing to do until our parents came back from an errand, I hung over his shoulder and made jokes at his expence while he struggled with Magma Cavern. Two made frequent appearances:

Me: What's Groudon's power level?

Zen: IT'S OVER NINE THOUSAND!

And, after the aforementioned Legendary kicks his butt:

Zen: THIS IS *censored*

Me: Actually, this is Magma Cavern.