a gunner typically is a one dimensional idiot savant who spews medical minutia as ammunition to make you feel inferior. they have trouble talking to women, although some can fake charm.
in general. i have found that gunners have no other expertise in another field. is essence, they can only show off their mental guns in medicine.
Cool kids in class...you know with talent outside of medicine whether it be athletic, arts and music, or other intellectual pursuits are MUCH LESS LIKELY to feel compelled to exhibit traits of being a gunner. I feel the reason for this is that they are SECURE intellectually and emotionally.
gunners know who they are. everyone is competitive, and being competitive is NOT the mark of a gunner.