-(IBAction) changeBackgroundColor:(id)sender
{
    for (int y = 0; y < 30000; y++)
    {

    if(y % 2)
        {
            self.view.backgroundColor = [UIColor blueColor];
            colorView.backgroundColor = [UIColor redColor];

        } else {

            self.view.backgroundColor = [UIColor redColor];
            colorView.backgroundColor = [UIColor blueColor];
        }
    }
}

BECAUSE YOU TOUCH YOURSELF AT NIGHT