Whether or not a glass is half full or half empty is not a philosophical question. The answer depends on where the liquid starts from. If a full glass was emptied to half, then it's half empty. If the glass was empty and then filled up half of the way, it's half full. Things get a bit unclear though with this cool new Happy Half Wine Glass. While it may look like a normal wine glass when viewed from the front, it's actually been cut in half when viewed from the side and has a completely intact base to keep it from tipping over. It's perfect for portion control because your mind thinks it's only having one glass of wine (drink slow) and makes a fun gag gift or prank to mess with wine lovers.