Bob Engelhardt wrote in message ...
Dave wrote:
The bait in the trap is a foul broth, the stench of which attracts the
flies, and maggots can always be seen living in it.

But the bait isn't actually _in_ the trap - it's underneath. Once a fly
is _in_ the trap, it can't lay it's eggs in the bait. Bob

Ah, that is a refinement over what I have seen.