The speculation continues, with occasional rude noises off.

"Taking candy from a baby" - that's a good point Laura made. But at least that sounds easy, to people who haven't had much to do with babies.

The image of shooting fish in a barrel is so strange that I am sure it must come from some specific source, for example a story, or some daft local activity. Perhaps a sideshow at a fair? Like the sideshow Billy the Bus reminded us of - "One I recall also had a tub of turbulent water, with numbered ducks bobbing about on the surface. That was the tricky one."

As he said, that's something that is very tricky, but it might look easy to many people. Like shooting fish in a barrel, indeed. If you ran a stall at a fair like that you'd probably get quite a lot of takers, and take quite a lot of their money.