To muddy the waters even further...

"From Wikipedia, the free encyclopedia"
http://en.wikipedia.org/wiki/Shark_episode

The Shark episode or Mudshark incident was an alleged event which took place at the Edgewater Inn in Seattle, WA, on 28 July 1969, involving Richard Cole, a road manager for English rock band Led Zeppelin, and members of the American psychedelic rock band Vanilla Fudge. The bands were in Seattle for their appearance at the Seattle Pop Festival at Gold Creek Park on 27 July 1969,[1] and were staying at the Edgewater Inn. This hotel, now known as the Edgewater Hotel, is located directly on Puget Sound, and at the time allowed guests to fish directly from their room windows.[2]
The Edgewater Hotel on Puget Sound. Guests were once allowed to fish from the windows.

The Shark episode is alleged to have involved some type of sexual act with a fish. However, there are many variations on the story, all involving one or some of the band members, as well as variations of the type of fish (often claimed to be a shark), and the nature of the acts performed.

(There's even more on the wiki page...and if you didn't catch the Zappa reference above (like me) after you read this you will)