UK milk bottle lock

If like me you are fed up of people using your milk from a shared fridge (office/flat etc) you can now secure it! This design prints a cap (similar in idea to a childproof lid) that fits UK plastic milk jugs 1ltr/2ltr etc (38mm cap) and stops anyone from helping themselves, this prints in place and requires no supports but due to the tolerances it does require a little (sharp!!) smack to persuade the two parts to move freely! 25g of filament Feel free to tweak this model i.e change the shape of the key for the lid/locking cap for multiple users