How ya doin'?

At the end of his little book The Cross Centred Life C.J. Mahaney describes his response when people ask him how he is doing:

Ask me how I am doing on any given day and you might be surprised by my response. I don't give the typical "I'm great" or "fine thanks!"
Instead I say, "Better than I deserve."
It catches people off guard. Many times non-Christians have argued with me, convinced that I suffer from low self-esteem.
But no - I just understand who I am and where I deserve to be. I deserve God's wrath. Honestly, I deserve to be in hell. But instead I'm God's child. I'm forgiven and loved by Him. I'm going to heaven.
I'm doing much better than I deserve!