Did what you thought worked last time you ran it really produce the right results?

Reference:

• Step 12 – Has it happened before?
• Step 15 – The correct version?
• Step 27 – Experience

Related questions:

• Has it been tested?
• Has it happened before?
• Have you already fixed the problem?
• Have you raised an issue?
• Is there a defect?
• Is this a known problem?
• When did the problem occur?