@swissclive that was too kind - "Catching the cat 🐱 in the trap and letting it go". If I should relate that to a life scenario is like monitoring a thief and finally getting him red handed on the spot and letting him go with no harm.

Here is a video of our cat getting the shock of his life when she tries to get our mouse. Look at the funny jumping gesture the cat makes.

From how you started the story I think the "his" in the sentence should be replaced with "her".