Program.cs

volatile bool shouldPartyContinue = true;

public static unsafe void Main(string[] args)
{
    Program firstDimension = new Program();
    Thread secondDimension = new Thread(firstDimension.StartPartyInAnotherDimension);
    secondDimension.Start(firstDimension);
    Thread.Sleep(5000);
    firstDimension.shouldPartyContinue = false;
    Console.WriteLine("Party Grand Finish");
}

private void StartPartyInAnotherDimension(object input)
{
    Program currentDimensionInput = (Program)input;
    Console.WriteLine("let the party begin");
    while (currentDimensionInput.shouldPartyContinue)
    {
    }
    Console.WriteLine("Party ends :(");
}