I am not exactly a gunner in the sense that I hurt other people to improve myself. But I must admit that I enjoy sitting up front in class, and asking lots of questions. I also think that its a good idea to get a head start on exams like the MCAT, USMLE in high school and undergrad. Most people have advised me to not pick up a specialty until Medical School, but I have already decided on two specialties that I am strongly leading towards. (EM and Cardiology appeal to me so far) Why is SDN so agressive to people who want to get a head start? Is it jealousy or some other reason?