Ever shot a job that you weren't happy with....

Have you ever done a job, loaded up all of your photos (or maybe developed your film) and absolutely hated the results?....almost wish you could hit delete and re-do the whole thing? Maybe the lighting or weather didn't co-operate or a crying child ruined the majority of pics or whatever
Of course, the job of photographer dictates that we make lemonade out of lemons as best we can because we gotta show the client the finished product whether we like it or not.
Anyone care to share any experiences?

I had a paid event once. Half way through the event I notoced that my settings were off. Upon looking at the pictures, I had to get very creative. Many shots were out of focus due to my settings. I made a lot of lemonade with my lemons. In the end, the customer was happy and was hired for a subsequent event.