Partnering up with a company of certifiable idiots. Even did an LLC. My company kept up our end. They couldn't do a fucking thing right or make a fucking schedule to save their fucking lives. A supposed three-month project and then the money would come rolling in (it literally would have!), and 21 months later they still were saying they were working on it. I said you're fucking kidding? We gave up on you so long ago, forgot you still existed.
Cost me enough money in development to buy a helluva expensive car or even a house. Because it was such a sure-fire concept, I let all the other projects, sites wither on the vine so when it all went wrong, all the other stuff was left in multiple stages of collapse. Today, there's hundreds of those sites out there now, the kind we were going to do. At the time, we would have had a nine-month jump on everyone and been the very first!
Massive waste of money, time, resources. I could fucking spit acid. Two of the bastards them I'd love to kill -- slowly. The other I'd just mame and let bleed a lot. Ok, maybe a little bludgeoning too.
Hey, but fortunately that's all under the bridge now and I hold no anger, no resentment, nor any regets now at all.
... Yeah, fucking right!!