In his fourth week, Nicholas realises that aliens are EVERYWHERE. Tosh takes him on a walk round Cardiff and points out four different shops owned by humanoid aliens, and three people who are aliens in disguise.

"But they're all vetted and harmless," she says. "They're basically immigrants."

Intruiging. That isn't something they cover on the show much - you know, aliens that aren't out to destroy the world, just sell pasties and used books and whatnot - but I wish I could hear more of this, even if it's just nods*nods, like this part. It sounds like there's a story (stories) in there.