Another squid joke?

An elderly squid was laying on the seabed nearing the end of his life when a shark, looking for dinner, swam over to him. "Please don't eat me", said the squid, "I've been sick for weeks now, and haven't got long to go". So the shark said, "Ok, as you're so sick, climb onto my back and I'll take you for a little ride". So the squid climbed on and the shark swam across the seabed until they came to some rocks where another shark was lurking. "Hello", said the second shark, "What brings you over here?". "Hello mate", said the first shark. "Here's that sick squid I owe you"