2015 - per the 10K, page-45

I certainly was Doug and it has been a very expensive and embarrassing learning experience.

The difference between you and I is that I have taken responsibility for my poor investment decisions and base my current sentiment on current company operations and current market forces.

While we definitely learn from the past, being backward looking is never productive in investing, in business, in life in general. I like to look forward and if what I see / expect to see in front of me is not where I want to be, I take a different path.