Place it at the peak of the mishap, not during the build-up. Lead in with the sudden suspense sting to raise expectation, then follow it with the faaaa meme sound if the fail keeps getting worse and needs a second, longer reaction beat.
Über diesen Sound
Agarorrai is a short 1.6-second voice clip of someone shouting the word in one loud, stretched burst. It lands as pure over-the-top disbelief, turning a small surprise into a big, silly reaction that feels funny and frantic rather than angry, like the moment has completely overwhelmed the speaker.