one day me and my work mate fred had to change a gate valve on a 3" water pipe in a fire station. we thought we had isloated it and cut the pipe to drain it. the water was gushing out about 8 feet but running into a gulley so we decided to have a cigarette and watch it . i said to fred its not slowing down ya know . he said its ok it will in a bit . next thing we heard shouts of panic "water water" and went to have a look . the water had run into another boiler room where the electricians had got flooded out ... lol . anyway we sorted the valve and spent the next few weeks laughing about it shouting "water water" whenever we heard water . :} regards , rich.