Have You Had This Experience?

 Two months ago:
E: I'm seeing a few more feral cats maybe you should put the traps out again.
D: I haven't seen any cats.
Result; no traps set.

  One month ago:
E: I'm seeing a faded orange cat and a calico one, maybe you should set the cat traps.
D: I haven't seen an orange one but I've seen the calico one.
Result; no cat traps set.

 Two days ago:
D: You know, the feral cats are starting to harass our cats again. Maybe I should set out the cat traps.
E: Silence caused from frustration that when I suggested the traps it didn't seem like a good idea but if D suggests the traps it's brilliant.
Result; cat traps set.

Day one: Within three hours four cats in four traps
Day two: Within hours of emptying traps all four have cats in them again.

And no, the cats I've seen running around are not yet caught in the traps. So there are at least three more feral cats around here breeding more cats. Gee, I wish someone had thought of trapping them a couple months ago.