Acknowledgements

• Theme music: Go 'n' Drop, by Antony Raijekov, from his Jazz U compilation (CC BY-NC 2.5)
• Thumbnail image: "funny cat" by Iurii Ogiienko on Flickr (CC BY-SA 2.0); resized, cropped, brightened and distributed under the same licence (CC BY-SA 2.0)
• "catHowling2.wav" by Zabuhailo via Freesound.org [Public Domain]
• Slide show image: "copyright-hacking" by entapir on Flickr (CC BY 2.0); resized, cropped