Out of the lab and into a post-doc in government

At the end of my graduate career at the University of Pennsylvania, I deeply dreaded doing a post-doctoral fellowship. How many more sleepless nights would I run the same mindless assays to find that the experiments didn’t work? How many more hundreds of nameless mice would be sacrificed only for me to conclude in a publication that differences between mice and men rendered my results barely relevant to human health?
How many more years would I not have a “real job”?
Then, I found epidemiology. And I realized that I liked science after all.