That doesn't make any sense. Why should it matter if the customer understands the waiter's life story if he's terrible at his job.
Excuse me waiter, we ordered our drinks over a half an hour ago and you still haven't taken our food order.
- So, I'm only here as a favour to management.
Well, it's your job is it not? You're not doing it very well.
- YOU DON'T GET TO TELL ME I'M BAD AT MY JOB, YOU'VE NEVER DONE MY JOB!