Ob-Wan: Now, let's see if we can't figure out what you are, my little friend. And where you come from.
R2: Beep (Oh For F**k sake old man!! What's to figure out? We used to hang out all the bloody time. Darth Vader owned me for god's sake!! and he built golden bollox over there!!)
Luke: I saw part of the message he was...
Obi-Wan: I seem to have found it.