Protection from sharp sharp teeth

Being tired of keep getting cuts inside my mouth when Matt knees me or elbows me in the mouth, I finally broke down and bought a mouth guard. I picked the $20 kind over the $5 made in China brand. Since this thing is gonna be put inside my mouth, I figured I better be safe than sorry. It's actually pretty cool, featuring all kinds of high techy stuff like holes in the guard for breathing ( Although it's under my teeth, does this mean my teeth breath? ), shiny semi-transparant rubbery surface that gets molded to the shape of my bite, and other cusion things that supposedly protect me from everything from lacerations in the mouth to having my brain turned into jello. The guard does makes my mouth look swollen, plus makes me look like one of those serious wrestling types. Now I'll have no excuse to slack off during randori. All of the sudden, my martial art practice have gotten so serious. I found out that the Fencing Salle is opened on Fridays. This means I'll be practicing some sort of martial art on tues, thurs, fri, sat, ( and possibly monday ). That's 4 times a week, woosh.