In a place I worked, some training captains came to fly with an empty flight case, and loaded it with drinks from the galley until the handle was almost bent when lifted... I find this to be really cheap, you make thousands of dollars working in a nice environment (NOT a low cost) and you can't by yourself some drinks? This is called theft. If you're thursty, drink on board, unless it was crew water you didn't finish and bring home, for the sake of not throwing it away.