This morning, I was looking at knife blade to check for rust. No rust. However, as I was resheathing the blade, I missed the sheath. I did not, however, miss my right hand, which was holding the sheath, so I managed to bury the tip into the side of my pinky.
That was definitely a waker-upper.
I made it to the bathroom, and a combination of direct pressure, cold water and steri-strips (a must for every well-stocked first aid kit) managed to staunch the flow. This allowed me to get to the serious work of scrubbing the blood spatter from the carpet.