Panic attacks.
Today is officially the most nerve-racking day I've had in months. Not only that, but I recently discovered that it's not a good idea to get your eyebrows waxed if you're not perfectly calm. You will make a loud noise and accidentally kick the poor girl with the wax. She didn't do anything to you that you didn't ask her to, so be kind. Take a Seroquel or something. :)