Boasts grow bolder and claims get wilder when Mercury, the planet of communication, is in Sagittarius. Sagittarius is a sign famous for embellishing details and playing fast and loose with the facts. It’s harmless fun if it’s just a story being told at a party or bar, but it becomes dangerous when the person doing the telling is the one in charge. For weeks you’ve had to put up with a certain blowhard. Maybe you’ve had to sit by silently while he made a mess of the facts or perhaps you’ve even been the target of his disinformation campaign. In any case you’ll be glad to know that the bubble bursts on Dec. 24 when Mercury squares Neptune in Pisces. Not only will it sound off a loud pop but it will leave gum all over his face. This is better than leaving a lump of coal in his stocking could ever be.