Place this clip at the end of a blame or complaint sequence, after a no no wait wait button sets up the panic, then follow it with Nelson's Ha-Ha! for the mocking payoff your edit needs.
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This is a short spoken clip of a voice saying the Russian phrase 'a vot eto ne moya problema', meaning 'and this is not my problem', in about four seconds. It feels blunt, dismissive and quietly funny, like shrugging off someone else's drama without getting pulled into an argument or taking any blame for it at all.