Oh, Jennifer Lawrence, claiming you’re just realizing that you may have a bit of a potty mouth. Talking about the must-be-over-18 sign in Hall H for the Mockingjay Part 2 panel that he moderated yesterday at Comic-Con, Conan O’Brien added, “It’s almost like they wrote that just for you!” “We have a swear jar right here,” he offered up a jar labeled “Swearing Is Caring.” “I have several thousand dollars here and here’s what we’re gonna do.” So the object was, Conan would drop $100 in the jar for every profanity J.Law could come up with in 30 seconds, then he’d double the amount and donate it to the charity of her choice.