The U.F.O. Investigator,  Vol. III, No. 3, June-July 1965, page 5:

Somerset, England

In at least one case, the appearance of a strange flying object caused a stampede.  On Oct. 30, 1964, Mr. James Sharman, a British coal merchant, and three business companions were on a night time fishing trip in Somerset, England.  Shortly, after midnight, a mysterious flying machine appeared, illuminated with a dazzling red light.  It was moving slowly in their direction, and at a fairly low altitude so that the red glow lit up the bank of the stream and the surrounding fields.

“There was a herd of about 50 cows in one field,” Sharman reports.  “When the thing stopped overhead, they started making a heck of a noise and chasing around the field.”

The cattle were so terrified by the UFO that the men narrowly escaped being trampled.

“It was like all pandemonium let loose,” said Sharman.  “We hid behind a car, so the cows wouldn’t sweep us in the water.”

After a few minutes, the unknown craft accelerated and disappeared, and the cattle quieted down.