Originally published at: https://boingboing.net/2019/04/08/this-fellow-figured-out-how-to.html
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13 Likes
You have to pro-rate your ingredients based on total item cost and/or provide a minimum item cost. Missed those use case tests.
17 Likes
The whole is less than the sum of its parts.
22 Likes
McD’s should pay their bug bounties in hamburgers.
23 Likes
And yet, he’s still paying too much.
46 Likes
26 Likes
It’s neat and all but now you have 10 burgers you probably don’t want to eat.
8 Likes
But what about conservation of mass?
9 Likes
Interesting exploit, but I think he’s still getting exactly his money’s worth 
ETA: @Ratel said this more succinctly already 
6 Likes
Not even burgers anymore, considering they’re meatless. Essentially he’s getting 10 onion and pickle sandwiches, plus ketchup and mustard; and a single burger.
17 Likes
In college we used to do something similar at Wendy’s (without a kiosk). We’d ask for a single with everything, no meat, and get a pretty hefty veggie sandwich for about $0.10
22 Likes
Even free poison is still poison.
11 Likes
Sandwich customization has long confused McD’s systems.
The app recently had a deal for “any* large sandwich for a dollar” while excluding some of the most expensive, like the double quarter pounder. But you could always order a single quarter pounder with the coupon and add an extra meat patty.
11 Likes
Well, I guess if you really wanted to irritate your vegan friend by treating them to some take-out… 
8 Likes
While slightly better than “Eww, food from White Castle/Taco Bell? Better plan for some diarrhea! LOL!” comments, this contributes just about equally to the conversation.
6 Likes
There’s always a relevant XKCD:
33 Likes
I’m glad you went with that rule, rather than 34…
(What is the “there’s an XKCD for it” rule number?)
5 Likes
He’ll throw away the 10 meatless sandwiches, and then eat the single burger that is left. I assume that’s what he wanted, a free burger.
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When I was in college, we discovered that a nearby pizza place counted “extra thick” crust as a free topping you could get on one of their cheapo large pizzas… and they would also add more crust on request. So a typical order would be a quad-sized crust topped with tomato sauce and cheese with maybe some pepperoni, and we could eat tomatoey cheese bread for days for about five bucks.
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