Courtesy of Dan McTaggart.
10. 'That's weird...'
9. 'It's never done that before.'
8. 'It worked yesterday.'
7. 'You must have the wrong version.'
6. 'It works, but it hasn't been tested.'
5. 'Somebody must have changed my code.'
4. 'Did you check for a virus?'
3. 'Where were you when the program blew up?'
2. 'Why do you want to do it that way?'
1. 'It works for me'