Once in a lifetime?

No, don't get me wrong - nothing to do with drinking Guinness. Took it just on the way to a Chinese restaurant to see off a friend who's family has made a decision to move back to China. His contract ends soon and there is no immediate continuation.

He's a friend's friend who offered good support (in his words - tiny) shortly after I arrived, by when his son was not yet fully recovered. So this tiny meant titanic to me.

Now that it's a shame that I will not be able to see the family off at the airport, having a farewell dinner seems the most straightforward way. Wish them all the success after going back home.