Well fresh from the marriage break up as I am, I would say lying.
I love hindsight and the fact that it is 20/20. But I guess screwing up is a good thing when you learn from it. I've learned the value of complete honesty. Although there are many that don't like the new me lol
So I guess I don't regret it so much now, I try and look at it as a part of my learning curve.
Funny how we can forgive others far quicker and easier than we forgive ourselves
Nic