[ewest]

I think firing the guy for this is pretty extreme - it does not allow for:

* the owner to constructively handle issues like this (maybe like educating the 'offender') * the 'offender' to learn from his mistake and understand it in a broader context

All we have here is action: twitter-shame non-tipper; result: fired. Very short-sighted.

As far as the story itself goes - tipping is optional (even for large/huge orders), so the guy was in the wrong to begin with.