>>“How do you explain the San Sebastian?”
What about it?<<
It was the 4th ship.
It fell off the edge.
(*badaBOOM*)
“It was the 4th ship. It fell off the edge.”
In the course of his four voyages, Christopher Columbus lost nine ships.
http://www.shipsofdiscovery.org/v1/columbus.htm None of them were named San Sebastian. Maybe the fault is in the delivery of your punchline?