They do more than just try to embarrass you by singing obnoxiously over you, ...oh no, there's no hiding in your napkin and enduring the torture.
They actually get you up OUT of your seat, and make you write your name with your hips while they sing Happy Birthday.
I kid you not!!!
I am not an overly shy person, so I didn't have too much of an issue, but can I just tell you that if you are ever at Joe's and it's someone else's birthday, you could at least clap and smile sympathetically... not stare as if this person is a complete moron. ;o)