So, even though I had to spend $45 on a new showerhead, I did fix the shower. And the best part is, I now have a wrench. I've decided that it is my favourite thing EVER. It's got a nice weight to it, and can fit comfortably in a back-pack. I am really quite tempted to carry it around with me, just in case anyone wants to start something.
On the other hand, my ass still hurts from where I fell on it during shiai. D'oh.