Place it at the turning point of a failed-fit edit, after the approach has been shown and just before the stuck result. Open the sequence with Sudden Suspense, let this clip deliver the verdict, then close with Nelson's Ha-Ha! for the teasing payoff after the attempt collapses.
Über diesen Sound
This is a sub-second spoken reaction clip saying there's no way that guy fits, delivered in a flat, disbelieving tone that lands like a instant verdict on a doomed attempt. It feels amused and sceptical, perfect for the moment someone's plan is clearly too big for the space in front of them, with the humour coming from how certain the speaker sounds.