Hmm, I've heard that it happens when there is a glitch to their coding. The person I know from home had left and came back in the same manner as well.

[He finds that a little annoying but it wasn't something that he was going to swell on. There were other things that he found more concerning then a simple data problem.]

I know of someone who is looking for a wait staff at his restaurant, if you would be interested. I know it's not a tea house, but it is otherwise the same kind of employment.