The Brown Cow, the White Cow, and the Bull

On a farm lived a boy and his mom. The farm had a brown cow, a white cow,
and a bull. So, one day the boy runs to his mother and says, “Mommy,
mommy, the bull is fucking the brown cow.” The mom looks at him harshly
and replies, “No, son, you have to say the bull surprised the brown cow.”

The next day the son runs to his mom and before he can say anything the
mom said, “I know what you are going to say, the bull SURPRISED the white
cow.” The son said, “He sure did, he fucked the brown one again.”