I am using MS Excel 365 (part of the Office 365 package)
I have a quiz with 15 questions. For each question you can choose a number 0 to 4. Spin buttons are being used to make the choice. However randomly the spin button down arrow increments the value instead of decrementing it. The 'current value' is set to 2 the max value is set to 4 and the min value is set to 0 for the 15 spin buttons.