private void AddGrannies()
{
Grandma[] g = {
new Grandma(60),
new Grandma(62),
new Grandma(64),
new Grandma(66),
new Grandma(68),
new Grandma(70),
new Grandma(72),
new Grandma(74),
new Grandma(76),
new Grandma(78)
};
m_Grannies.AddRange(g);
}