of mice and drugs

I have been recently enamoured with Firefox's add-on - something called 'Stumble' where they randomly generate a site based on your interests.

So I stumbled upon this really cool site called Mouse Party. There are these mice in a glass tank, all engaged in weird dopey behaviours. You pick up a mouse and dump in a machine, which will then explain the process of addiction to a particular drug, with reference to the mouse's brain. Diagrams and written exposition provided.

I was not as interested in the explanation as with the meddling with the mice bit. It's cute.