the cat trap, day 1

I placed the cat trap outside overnight for the first time. we put a small amount of tuna on a piece of cardboard near the end of the trap and I placed it right next to the wall so that, in case it was a really sunny day, at least the animal would have been in the shade.

no results! nothing. the tuna has completely dried up into a flaky powder and the trap hasn't even been sprung.