To the internet!
Went to the vending machine on lunch, put in my money, had a quick squint at the drinks and chose Orange Tango. Pretty standard affair.
..until a cherry coke falls down

... and then another... and another... 13 Cherry Cokes for me
Told the boss to which his reply was "don't say **** all" so they're now sat in the fridge in the staff room. Great success!