Place this clip at the exact point a plan falls apart in your edit, then follow it with the awkward moment sound to let the reaction linger, or precede it with the Windows XP error sound for a system-failure setup.
About this sound
A 1.6-second voice clip of someone blurting out the garbled Russian phrase 'ebalo ofni pensia' in one fast burst. It lands as pure nonsense, abrupt and a little aggressive, which makes it feel funny rather than meaningful, like a random outburst that interrupts a normal conversation for no reason at all.