This is the best answer I've read here. I don't think blaming you helps here. I've personally seen things like this happen to me. Sure I've learned more about how to prevent this from happening in the future but it's still very aggravating.

Basically, don't give this job your everything. Do the work that's required of you and like the parent thread says leave yourself a bunch of energy. A technique that's worked out well for myself and other friends in the past is taking the first couple hours of each day to do personal projects and then go into work.

Don't give them the best hours of your day.