My best injury came before I went sailing one day. I had just gotten a new knife - and a new block from the store and proceeded to open the block with the knife. I took the top 1/8 inch of my finger off with the knife while opening the package. My crew that day is a surgeon, so I kept the lump of skin and flesh for him to see (it stayed on the blade). He said it probably needed stiches and I shouldnt get it wet.
We went sailing anyways.