private int CompChoice()
        {
            Random rnd = new Random();
            int compChoice = rnd.Next(0,3);
            switch (compChoice)
            {
                case 0:
                    lblBCPaper.BackColor = Color.Red;
                    if (lblBUPaper.BackColor != Color.Green) lblBUPaper.BackColor = Color.Red;
                    break;
                case 1:
                    lblBCRock.BackColor = Color.Red;
                    if (lblBURock.BackColor != Color.Green) lblBURock.BackColor = Color.Red;
                    break;
                case 2:
                    lblBCScissors.BackColor = Color.Red;
                    if (lblBUScissors.BackColor != Color.Green) lblBUScissors.BackColor = Color.Red;
                    break;
            }
            return compChoice;
        }