How will the children in Greensburg know when it is time to go home? The whistle on the water tower blew at 7a.m., noon, 1p.m. and 6p.m. all of my life, until May 5. We didn't all have wrist watches when we were growing up. We didn't need them. We had the whistle. Our folks would tell us to come home for lunch or dinner "when the whistle blows". It was the same for all the neighborhood kids. Up for school at 7a.m. in the winter. During the summer while playing we all knew when to break and head home for mealtimes. It was such a peaceful existence growing up in Greensburg.