Some pranks are all wet, such as the one pulled recently in the hotel lobby of the Radisson Blu Hotel in Jersey, U.K.
A man known only as "Matt" decided to jump into a tank full of fish with his clothes on and go for a swim, according to the Sun newspaper.
His efforts at "clean living" didn't get much approval from hotel management.
At one point during the short video posted on YouTube, one employee clearly tells "Matt": “What are you f***ing doing - get out.”
The fish had no comment.