My dear fellow, you may laugh, but I give you my word that I shall be very glad to have you back safe and sound in Baker Street once more. - Holmes, … - Arthur Conan Doyle

Circumstantial evidence is a very tricky thing. It may seem to point very straight to one thing, but if you shift your own point of view a little, you may find it pointing in an equally uncompromising manner to something entirely different

"His name," said the cabman, "was Mr. Sherlock Holmes."
Never have I seen my friend more completely taken aback than by the cabman's reply. For an instant he sat in silent amazement. Then he burst into a hearty laugh.

The swing of his nature took him from extreme languor to devouring energy; and as I knew well, he was never so truly formidable as when, for days on end, he had been lounging in his armchair amid his improvisations and his black-letter editions. Then it was that the lust of the chase would suddenly come upon him, and that his brilliant reasoning power would rise to the level of intuition, until those who were unacquainted with his methods would look askance at him as on a man whose knowledge was not that of other mortals. When I saw him that afternoon so enwrapped in the music of St. James's Hall I felt that an evil time might be coming upon those whom he had set himself to hunt down.