While you're out at dinner with your husband, you've been able to keep your tics under wraps pretty well. But when the couple at the table next to you starts talking loudly, you can't stop it. It just slips out.

"Shut the fuck up," you tic, followed by a popping sound. They look at you, offended. Almost immediately, the man stands up and starts to walk over to your table. Alejandro stands and steps in front of you, blocking the man from getting closer.

"They have Tourettes, pendejo, back off."