Biology maven Cathy Kliegel sent me a hilarious little video of an octopus. She says:
"What this species does to sneak away from an enemy is it wraps its legs around itself so it looks like a coconut, and then it runs away ON TWO LEGS!"
http://www.nature.com/news/2005/050321/multimedia/050321-14-m2.html
You'll need Quicktime to view this, but the site will prompt you to download it if you don't have it.