Second Chances - A thought

I was reading a survey posted by a friend (ex-Girlfriend) where one question asked "Do you give out second chances too easily?" It made me think. Do I? And the answer is varied...

For friends: Can you ever?
For relationships: I have only had the opportunity once and I was shot down trying
For Family: Second chances are a no brainer.

But it also made me think about second chances in relationships and me, meaning someone giving me a second chance. And I realized, even though I have never had anyone break up with me because I did something, no one has ever given me a second chance.

Is it unusual to never GET a second chance?