"... once, after I came to Fort Sedgwick, the wires were said to be "down," and no communication could be had with other posts in the upper country. It was feared that the Indians had been tampering with the wires, and torn them down. But the operators went out under an escort of soldiers to see what the difficulty was. They came back again in a couple of days, and reported that the Indians had not meddled with the wires at all. But it seemed that some buffaloes in a large drove had taken the privilege of scratching their rumps against the poles, and thus tore them down; and getting their horns entangled in the wires, the wild creatures had carried off about four miles of telegraph-wire!"
January 1, 1970
https://en.wikiquote.org/wiki/Electrical_telegraph