Now I also have some mainstream failures....
Anyone remember CitySoap.com ? The idea was great, it was ahead of its time, and probably not 100% non-adult since we would have had some gratutious nudity.
This was before big brother, survivror, and all the other shows became popular.
The concept was good, the execution was off - we had a partner in NY who handled the talent, and he had no experience with Internet. He was very difficult to deal with and since he was the person in NY his vision is what we all saw on the net - so he had control.
I tried to get him to work with us, even went to NY many time - and things would go well until I left again. So I finally made an ultimatum that he had to run the talent like the other partners wanted or we were going to pull the plug. He ignored me, so I turned off the T1.
I lost a lot of money in the project, mid 6 figures. I lost a lot of time as well, but I did learn a lot.
The other partner, the Technical one was R-n - working with him and his company was actually easy to do. Suprisingly I thought he would had been difficult and the other partner would have been easy, but it did not work out that way.
I did learn a lot, including the concept of picking your partners better.