Place this clip right after the accusation lands in your edit, before any response from the other person. Follow it with a nope meme sound button for a second denial, or precede it with a what da dog doin sound button when the confusion starts as a question.
About this sound
A short Russian voice clip, just over two seconds long, delivering the line that translates as 'you are confusing me with someone else.' Said plainly as a flat denial, it feels dismissive and deadpan funny, like a calm shutdown for a case of mistaken identity rather than an angry argument.