My user name is my first initial and last name. It's basically what I use when I'm not feeling creative and/or want to make sure I'm not going to forget how to log into a site if I've been gone awhile.
My avatar is one of those cat macros with "I'm in ur [noun], [verb]ing ur [other noun]". If you can't read it well (since it didn't scale very well and I didn't feel like remaking it), it says "I'm in ur box, collapsing ur wave function."
It is, of course, a cat in a box.