Guy I was friends with in school sort of did the opposite. My family would buy 24can cartons of coke, this friend would only ever get "Homebrand Cola" they were like 1/3 the cost of a can of Coke, tasted terrible, 1st time he came over we had our cans, we discovered a week or so after his 2nd visit that he'd apparently brought a bunch of his cheap Cola in his bag, pulled out every can from the carton, replaced the bottom row with Homebrand, then put some of the Coca Cola cans back on top..It would've been less obvious if he'd just swiped a couple of cans, parents would've just blamed me or my brother for having too much.
This is kinda hilarious.
A douche once came over and called a sex hotline from our house phone.