Ohhhh dear. I have made an appalling error.
The executive summary:
- I just attempted to cut my own hair with the clippers.
- All was going well but the lead wasn't quite long enough.
- It appears that when I put the clippers down to go and get the extension lead, I knocked the guard off.
- I didn't notice until I started cutting again.
Some of my hair is now very short.
Possibly pictures to follow.