When I put my hand on the bone he snapped.
Luckily I had a thick glove on and he merely pinched my wrist.

Also I think he realized what he was doing for otherwise he'd have cut through the glove as if it had been paper.

He snarled fearfully and I sprang back with a cry.

Dan hadn't seen what happened, but he heard the snarl and saw Black Bart's bared teeth.

Then--oh, it was terrible!" She covered her face.
"Take your time, Kate," said Cumberland softly.
"'Bart,' called Dan," she went on, "and there was such anger in his face that I think I was more afraid of him than of the big dog.
"Bart turned to him with a snarl and bared his teeth.