It struck me that we hadn’t had any aliens for a few episodes, so here’s a quick interlude featuring Lady Catherine and her opposite number on Mars. Probably the last time I can get away with this particular gag, so enjoy it while you can.

Incidentally, it struck me whilst I was writing this episode that there’s probably an opening for an automatic alien anatomy generator. All you need is something that will come up with one of each of the following:

location | function | structure

Which is basically how I came up with “perianal thrust bladder”. Another writing tip there from JP. I should be charging for this stuff, you know.