Yep! I was doing one of the things they tell you to never do -- I was using the rotary to slice off a little bit without using a ruler. Sliced into the tip of my left index finger. Bleed right away.
I just rinsed it and wrapped it up. Kept a bandage on it for at least a week. Even after it healed, I had less feeling in that finger tip for awhile.
I have been more careful since!