Oh, thank you, Harriet!

Thank you, dear!

And damn, right, he says "Sie". I've decided to switch to "du" in my translation. Maybe I'll change it here, as well!

If you want to keep to the 'feel' of the original series then stick with 'du'. Using 'Sie' is much too formal.

In that case: Will we ever hear them say "du"? 

maybe they do it only in front of the camera 

The right moment IMO might have been after Moriarty finally left at the pool. Who would call somebody "Sie" after the person was ready to sacrifice himself for you. At the beginning of Series 2 when repeating the pool scene they could have done it, too. 
I wonder what they will do in Series 3. When they are stubborn, they stick to it untill the end. I read that somebody thought that it is appropriate because using first names and "Sie" is some kind of way to show they are friends, but not too close to each other.
Teachers in school use first names when adressing pupils at the age of 15 or 16.  It is a bit weird there, too.

It is not that strange, this way they can use Du without giving their personal names away to the customers.

Du is an expression of mutual acknowledgement in this case.
They would say Du all over, if it wasn't for nasty customers at times...
So this is a compromise for work friendship and protection of their privacy 

(A good friend of mine had a job in that business, and that is what her female co-workers told her.)

Last edited by Harriet (May 3, 2013 4:30 pm)