Most people have heard horror stories — be they fact or fiction — of customers finding less-than-savory additions in their fast food meals (video below).

I for one wish I could forget the woman who claimed to find a finger in her Wendy’s chili. And how about the man who discovered an actual decapitated bird’s head (beak included) in his chicken wings at Quick restaurant earlier this year?

But for every rule there’s an exception; for every unwanted human appendage lurking in your side of fries, a reward. 

On June 7, for example, a McDonald’s customer named Dave Cook in Virginia ordered a double cheeseburger off the dollar menu, reports WTVR. 

Cook bit into the sandwich, and instead of coming away with a mere mouthful of food, he instead felt something unusual between his teeth: a $20 bill.

"I was like what is this?" Cook told WTVR. "A $20 bill in my cheeseburger!”

"I've heard of people finding strange things in their salad, but never finding something like this [in] a cooked burger," he said. "I was in disbelief, I was like, ‘Is this for real?’”

According to WTVR, two men eating in the same establishment witnessed Cook discovering his good fortune, and proceeded to check their own meals for any hidden bills. They did not find any.

Cook told the station that if the restaurant requests that he return the $20, he will; at the time of the discovery, he did not alert store management.

Upon hearing the news, McDonald's management at the Virginia location was reportedly surprised, and wondered how such a thing was even possible. They have referred the incident to their corporate office.

Watch the magic happen below:

Sources: WTVR / Photo credit: McDonald’s/Instagram, WTVR