It's wrong to waste water.
Jackie is in the kitchen washing dishes when she hears the telephone ringing in the other room.
Jackie wants to answer the phone.
Jackie turns the running water off and goes into the other room to answer the phone.
Jackie leaves the sink running and immediately runs over to the answer the phone.
Jackie is able to resume doing the dishes after her phone call without having wasted any water.
Jackie's sink overflows and the kitchen floor is left covered in water.