"Smart Whale" joke

A male whale and a female whale were swimming off the coast of Japan when
they noticed a whaling ship. The male whale recognized it as the same ship
that had harpooned his father many years earlier.
He said to the female whale, "Lets both swim under the ship and blow out of
our air holes at the same time and it should cause the ship to turn over and
sink."
They tried it and sure enough, the ship turned over and quickly sank. Soon
however, the whales realized the sailors had jumped overboard and were
swimming to the safety of shore.
The male was enraged that they were going to get away and said to the
female, "lets swim after them and gobble them up before they reach the
shore." At this point, the male whale realized the female was becoming
reluctant to follow him.
"What's the matter darling?"
"Look," she said, "I went along with the blow job, but I absolutely refuse
to swallow the seamen."