A friend of mine did this about 8 years ago.He had inherited an old covertable pumper firetruck from somebody. Well, he was out on a bender(drunk) with a few of his buddies and they had a friend that owned a big house with a inground swimming pool. They also had a ski boat on a trailer. The owners of the house were gone so these guys think:"Wouldn't it be funny if we put the boat in the swimming pool, then pump it out?"I guess they all agreed it would be funny cause they managaged to get the boat off the trailer, into the water and not sink the trailer. Well, these drunks managed to hook up the 4" hoses and they drained the pool with the firetrucks pump. He said it didn't take too long. When the homeowners returned from their trip they were very mad, especially the wife! They knew who did it right away. He had to get the city to fill up the pool from a hydrant(amount of volume of water) and he and his"friends" had to get the boat onto the trailer and out of the pool. A sore subject to this day with the homeowners. I don't know how he got away with it that night, because this is a 1953ish and it ran a factory straight pipe. Beer+him=pranks. PDS