Gangster. I was watching LFA on Friday, and after Nakishima repeatedly kicked Krantz in the jewels, Pat Miletich showed why he is the O.G. He said he used to take his metal cup, and screw in a sheet metal screw, then back it out. This creates a hole, which leaves a ridge around the hole. After making multiple holes, the cup effectively becomes a cheese grater that shreds opponent's shins. He said he used the cup for all his fights. Any fighters here heard of this, or any other hacks like this?