With their sharp pincers, I would not suggest trying to mess with any regular crab. I would really not suggest trying to mess with this knife-wielding crab.
Badass Crab. pic.twitter.com/wNTrCcMDLR— Sam Kalidi (@samkalidi) February 13, 2016
That is terrifying.
Needing to go to the hospital for stitches because you got stabbed with a knife by a crab would certainly be an interesting addition to any medical chart.