def straight_torso(x, y, min_slope=9):
    """
    1:"Neck" and 8:"MidHip"
    perfect would be a vertial line, so steep/high slope is ideal
    0 - straight
    1 - not straight
    returns slope and label
    """
    slope = (y[1] - y[8])/(x[1]-x[8])
    if abs(slope) >= min_slope:
        return slope, 0.0
    else:
        return slope, 1.0