Here's a little application that some might find fun
is a graphical simulation of a section of excitable neuronal membrane using the Hodgkin-Huxley equations. It provides full access to the Hodgkin-Huxley parameters, membrane parameters, stimulus parameters, and ion concentrations."
There's also a little guide on how to use the application
Helping me to learn anyway how those bits of my brian that are screwed up should
EDIT:: Ok so it not humour but didnt know where else to post this one