"Am I right?"
"Certainly, but how?"
He laughed at my bewildered expression.
"There is a delightful freshness about you, Watson, which makes it a pleasure to exercise any small powers which I possess at your expense.
A gentleman goes forth on a showery and miry day.
He returns immaculate in the evening with the gloss still on his hat and his boots.
He has been a fixture therefore all day.
He is not a man with intimate friends.
Where, then, could he have been? Is it not obvious?"
"Well, it is rather obvious."