Ok, this is my first stupid accident with a razor in two years - I was holding a box full of razors in one hand checking which were restored and sorting them when I dropped the one I was holding as I closed it.
Not wanting to drop the box I couldn't move my hand fast enough and the point landed right in the ball of my thumb and dug in about 5mm. The pic looks like a flap of skin but unfortunately it was straight in. Now my thumb is throbbing!

It is however much less painful than when I nearly chopped the tip of my thumb off with the dremel cutting wheel! I guess it was shave ready.