Here's a brilliant way to use one's mathematical skills, so you don't get stomped on by the man.

In Australia, McDonald's have a product called Create Your Taste, which allows customers to create their own burger with a selection of ingredients.

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"With 30 gourmet combinations, the possibilities are endless," according a slogan on their packaging. Well, not according to one mathematician's calculations, which prove it isn't as endless as the fast food giant likes to claim.

Allister Haire came up with the proof and posted it on Facebook on Monday, in what is surely the most complex defence for consumers that we've seen.

Based on his calculations, with only 1,073,741,823 burger possibilities for the Create Your Taste range. "A finite number. Not endless," Haire concludes.

Haire told Mashable Australia he came up with the idea after a friend pondered aloud whether "what the ad said is true about there being endless possibilities, and asked if there was mathematical proof."

Haire, who has a degree in mathematics and confesses to have "long been an enthusiastic customer" on his post, delivered his rather hilarious manifesto after finding out that the burger combinations aren't so limitless after all.

"Am I expected to believe, along with the consumer public, that 30 ingredients can generate an unlimited number of burger permutations? Does this corporation put such a low price on my intelligence to consider me foolish enough to suspect that a finite number of objects can yield an infinite number of combinations? Or is it perhaps that this global fast food conglomerate has no problem stooping to textbook false advertising?

"Now, I have a degree in mathematics, so perhaps you think I don't represent the voice of the common consumer. But I'm done with the deception. The public need to know the truth. I've included a mathematical proof in case you don't think I'm serious. Goodbye McDonald's. Maybe there can be a future when fast food has a conscience again, but I'm also not so naive as to hold my breath," the post reads.

Mathematics, uncovering deception since forever.