Gearbox has gotten a lot of flak over Aliens: Colonial Marines, but I have to say the multiplayer does give the aliens a nice place to chill out while everyone else is running about shooting things. It's nice to have a little time to reflect. Maybe bone up on a hobby.
Hit up Twitch.TV for an archive of the whole session in several parts. I'd love to setup more streaming play dates with your folks, and I promise next time I'll try Train Simulator.