As an interesting little anicdote, we always try to ask open question to ds such as "What did you do....", "Tell me about.....", "How does so and so", and his stock reply is "NOTHING". That's all he'll say. What a love !
Then, after a minutes silence, ds will pipe up and say "Well.... blar blar blar blar" and tell us all about it.
It was annoying at first but now its a game and we all have a laugh about it.