Place this clip at the reveal point of your edit, right after the mistake becomes clear. Lead into it with No No Wait Wait to build the denial, then follow it with Oh My God Wow for a second reaction from another angle.
Об этом звуке
This is a short French voice clip of someone exclaiming 'Oh purée de pomme de terre, mais c'est pas vrai' in disbelief. Lasting just under three seconds, the delivery is exasperated and over the top. It gives listeners a funny, frustrated feeling, like a polite swear used when something goes wrong or seems completely unbelievable.