Well if you don't cut your hand off, how will people know you're serious about your science? Science isn't about why, its about why not! "Why cut off my own hand when I could use a glove?" Well, why not marry gloves if you love them so much? In fact, why not build a special safety glove that doesn't prick your delicate, womanly fingers when you put it on because you clearly aren't man enough to cut off your hand for a real Mann Co. weapon!