While a farm girl was milking a cow, a bull tore across the meadow toward her. The girl did not stir, but continued milking.
Observers, who had run to safety, saw to their amazement that the bull stopped dead within a few yards of the girl, turned round and walked sadly away.
"Weren't you afraid?" asked everyone.
"Certainly not," said the girl. "I happened to know this cow is his mother-in-law."