Free Refills???

It's commonly known among all eating establishments that free refills are just that, FREE. As long as you save that cup you can keep going back and back and back,as many times as you want and all for free. It's awesome. You don't even have to buy anything. Thirsty at 3pm..do you have your lunch cup from two weeks ago Thursday? 1045a got you screaming for a Sprite, Orange Fanta, Caffeine Free Diet Coke mix? Then you're in. Fill up and chug up. Cup starting to get a little ripe? Is the mold buildup making you sick? Does it not hold any liquid anymore and the duct tape just ain't working? Has the entire inside turned from a glossy waxed white to a deep caramel death brown? Do you puke every time you pick the cup up? Has HAZMAT been called to your house or apartment several times to dispose of your cup? Then ask for a new cup silly...they'll gladly hand you a new one. See a sign posted that says refills are for one time paying customers only, ignore it, or better yet rip it down. They wouldn't be called refills if they weren't refillable.