Glad you asked!

Well, it all started while I was working on the revision for my "Deathtrap" project. I accidentally cut myself with a particle saw but it wasn't like a bad cut, you know? Just almost made it halfway into the bone, no big deal. Didn't even pass out from blood loss.

So then I just get the idea and decide to cut off my arm altogether and give myself a cybernetic limb. It helped with my project and had the added benefit of being pretty awesome.