The Adventures of Sherlock Holmes1984

[last lines]

Sherlock Holmes:
Last night when I attacked the snake and drove it back through the ventilator, I roused its snakish temper, causing it to turn upon the next person that it saw.

Dr Watson:
Doctor Grimesby Roylott. So you, Holmes, were indirectly responsible for his death.

Sherlock Holmes:
I cannot say that it is likely to weigh very heavily on my conscience.