I recently had a similar experience. Put a fresh edge on my Griptilian then dropped it on my leg. Put a clean 1 inch hole in my jeans and shorts but luckily I was unscathed. I stitched up the jeans.
Yep, I’ve put holes in other pants cleaning my Microtech Cypher off on my thigh, the tip of that dagger blade is needle sharp. Luckily I’ve managed to avoid sticking my leg.
But as for the original premise of this thread, I’m already a HUGE fan of M4; it takes an absolutely wicked edge. Tougher than most to sharpen, but the end result is worth it.