After all the credits were over, and we were just about to stand up and leave, someone many rows down said "Grr! Argh!" while making a Mutant Enemy shadowpuppet. Love.
Oh, and while we were waiting in line to go in, the previous showing was coming out, and one of them had a Jayne hat on. (only not a real Jayne hat, 'cos they're orange and this one was black. But I laughed and gave a thumbs-up anyway, and she smiled back knowingly.)