Place it at the end of a failed-plan sequence, after the moment the idea collapses, so it closes the scene. Pair it with the Fail Sound Meme before it for the collapse, then follow it with It Was At This Moment He Knew for the realisation that follows.
About this sound
This is a short spoken line, lasting about two seconds, built around the question of how to get away, with an appeal to the Lord in the wording. It is blunt and fed up, turning a moment of frustration into a comic release. It feels exasperated and resigned, like giving up on a plan and wanting out right now.