Last May (2016) in the kitchen with a friggin cheap paring knife (probably no more than $10) but sharp and very pointy. I was trying to use the potty edge to take out the avocado seed while the halved avocado was in the farm of my hand! I was not paying attention so the next thing I noticed the knife slipped and blood was shooting out of my left index finger (right handed). I knew immediately that the gash I was looking at was not going to heal up by doing home remedies and stitches were needed at the very least. Trip to ER on a Saturday and then found out that I had severed the left side V-shaped tendon and it was sliced off cleanly. I was lucky I didn't lop off my finger which would have probably been the case with a more stout knife!
Was sent to a hand surgeon a week later after I was all stitched up and they recommended surgery because of possible fear of neuroma later on. The surgeon said that they could not do much about the severed tendon and I needed to be in a cast for up to 4 months because of the need for nerve graft as I had badly damaged nerves. 2-3 weeks in the cast was enough for me, so I said fark it as I didn't want to be afflicted for 3 more months with that darn cast (grafted nerves are too fragile and susceptible to tearing) if they couldn't fix my tendon.
Now I have gained most of range of motion back but the left side of my left index has very little tactile feelings above the knuckle. Cold weather bothers it too but it has made me a lot more alert about and weary of my much, much, much sharper and lethal knives!
P.S. The ER doc. told me that self inflicted stabbing over avocados was quite a common occurrence!!!