Simply because it was fast to draw(no I'm not British). By the time I decided on which comic idea I would use, I didn't have time to draw the 7 character illustrations required for it, so I used the idea after that one. Then I spent too long on the background(WTF).

Subtitles available at... oh who cares.

Edit: I guess I should translate for some people: "Arse" is British for "ass(the body part)"