Confusion handling ChartObjects

Hi there

Can someone help clarify for me:

Should this line return null if the horizontal line  named “Insight” can't be found and set the value of insightLine to null?:

insightLine = Chart.FindObject("Insight") as ChartHorizontalLine;

If i do:
 

  insightLine = Chart.DrawHorizontalLine("Insight", _linePrice, Color.Red);
  Chart.RemoveObject("Insight");

Should I expect that  insightLine.IsAlive should now be False? (but insightLine is ≠ null)

If I do:

  insightLine = Chart.DrawHorizontalLine("Insight", _linePrice, Color.Red);
  Chart.RemoveObject("Insight");
  insightLine = Chart.FindObject("Insight") as ChartHorizontalLine;

insightLine should now be null?

What I get is, that remove object doesn't seem to change the IsAlive property to false, and once it exists FindObject never seems to return a null, mostly as established with DrawStaticText, but I thought I should clarify whats actually expected behaviour.

THanks

Glenn