http://www.slate.com/articles/life/classes/2015/09/first_aid_class_learn_cpr_heimlich_tourniquets_burn_care_wound_care.html

The summer after my senior year of high school, I took an EMT class. I thought I might become a doctor, and training to be an emergency medical technician seemed like the best way to ease into a life of saving lives. It turns out I was not cut out to be a doctor—something I discovered in an ER when I was assisting a man who had sliced his hand open on an aluminum foil container. As I watched the blood pool under his hand while the doctor stitched up his gash, I decided pre-med wasn’t for me.