Yes, he had a jammed finger on his hand. Where else would it be? On his head? If he'd said "left hand," that would have been fine. More information and welcome. But he didn't.
Similarly, I read a novel recently in which the writer wrote "He looked back and waved his hand." Again, what else would he have waved? His left ear?
The first guy had a jammed finger; the second guy waved. End of story.
More SpeedEditor blog entries