Office employee pays $4.25 for a Coke Zero every day. 3 years later, he reveals the secret behind button C4 and the 600 extra cans he’s taken home

Buy one, get one.An employee at an unnamed company took to Reddit’s confessions community to share that he’s been using a glitch that he discovered was affecting a specific vending machine at work. While the user seems to have since privated the post describing how he used this glitch, Daily Dot goes over and quotes the original confession from when it was available to see.