protected virtual void OnPublicEvent(PersonalEvent e)
{
EventHandler <PersonalEvent> handler = this.PublicEvent;
if (handler != null)
{
e.Message += string.Format($" at {DateTime.Now.ToString()}");
handler(this, e);
}
}
void EventHandler(object sender, PersonalEvent e)
{
Console.WriteLine($"Message to {name}: {e.Message}");
}