Oh no I think I failed... oh no I didn't

I guess worrying about your mid-terms, and then eventually passing them comfortably doesn't really make you more popular.

You also hated the guy who you just know learnt his ass off all night for the exam, is making everybody nervous with all his cautious predictions, and then you find out he scored 96% of the questions correctly, right?

Making poor project estimates doesn't really endear you to clients and managers.

Telling everyone you're sick, but still getting a personal best, doesn't always make you more popular.

I guess in the end, to err on the safe side is the slowest way to failure.