Craziest thing you've ever done for science?

So, just to keep y'all entertained as I continue cranking away on other tasks: what's the craziest (or oddest, or most grueling, or etc.) thing you've ever done for science? Answer in the comments.

I write a lot about theory on this blog. This post is really for all you "muddy boots" field ecologists, since any modeler who says "I once wrote code that took 6 hours to compile" is just going to look silly. ;-)

While you consider your answer, here's some music to inspire you: