I did it once. I really enjoyed it. Try to be Foreman if you can. It's much more fun.
If you volunteer, it makes it all a bit quicker, since the first half an hour or so is taken up by everybody worrying themselves to death that they might have to do it :o)
One of my cases was a GBH. An ear-biting in a pub fracas in.........
Torquay (no change there then.)