I think at least half of the folks in the industrial design department in college seriously cut themselves. I took at least 2 people to the ER. Too much Xacto use.
I sliced the shit out of my thumb in printmaking class. Pulled the skin back, saw bone, almost passed out. Super clean cut though, so I didn't bother to go to the ER or anything. Lots of pressure and then a good wrap around with some masking tape LOL! The cut was so clean that there's literally no scar at all.
Wasn't much fun. Ever since, I've been super duper careful.