Want to get a free shake from McDonalds? As I discovered last week, even if you throw your half-full drink on the floor thanks to shaky-handed incompetence, wa

Want to get a free shake from McDonalds? As I discovered last week, even if you throw your half-full drink on the floor thanks to shaky-handed incompetence, walking up to the counter apologising profusely and asking for a mop will achieve the same result. Along someone else for you to apologise to when they arrive to mop up your mess.