A little girl was out with her Grandmother when they
came across a couple of dogs mating on the sidewalk.
"What are they doing, Grandma?" asked the little girl.
The grandmother was embarrassed, so she said, "The dog
on top has hurt his paw, and the one underneath is
carrying him to the doctor."
"They're just like people, aren't they Grandma?" said
the little one.
"How do you mean?" asked the Grandma.
"Offer someone a helping hand," said the little girl,
"and they screw you every time!"