Two weeks ago I was getting the mill scale off of 5 blanks had rough profiled... I was tired, and had wrecked a knife that I'd sunk 12 hours into that morning. I had the mindset that SOMETHING was going to work for me that day...
...so after wasting a 60 grit belt and still trying to get more life out of it by pressing ever harder, I hit my index finger knuckle against the small wheel of the top of the platen.
Stopped, wiped hands off with windex, wrapped finger in paper towel and electrical tape, and continued...
...after the second knuckle/contact wheel encounter (same wheel, same spot on knuckle), I realized the belt was spent. Replace knuckle bandage, fresh belt on the machine, pick up where we left off...
...third time is the charm. Not paying attention, I DO THE SAME THING, this time running a fresh 3M 80 grit 967 through the paper towel/e-tape booboo cover, into the hole on my knuckle, and scuff the bone.
No matter what I did, it wouldn't stop bleeding, and when the piece of steel I was working kept slipping out of my hand (amazing how well blood acts as a lubricant!), I finally too the hint to walk away.
....my bride didn't even want to know about it. Smart girl.