A Study in Terror

Sherlock Holmes:
My dear Mycroft, this is a surprise! Watson, some sherry ... Is this a social call?

Mycroft Holmes:
Yes, yes, oh yes, purely social.

Mycroft Holmes:
How are you?

Sherlock Holmes:
Very well.

Sherlock Holmes:
Well, now that the social call is over, hadn't we better get down to business?

Mycroft Holmes:
For Heaven's sake, stop sawing away on that infernal instrument! It was a sad day when Mother gave it to you, a sad day for her, a sad day for you, a sad day for us all ... What I cannot understand is why, since you've had that violin with you so long, you never learned to play!