All day as I try to do my work I am constantly reminded that I foolishly left a sharp knife in the sink. At one point I filled up with sink with hot soapy water and put my hand in and felt around the bottom. My intention was to wash up, starting with the cutlery at the bottom and felt this tiny sting and I knew straight away what I had done.

When you work with your hands it is not a good idea to damage your fingers.