I think its the type of person that goes into EMS in the first place. The adventure type, the person who walks on the edge, pushes it to the limit.
Think about what u do and see. Death, gore etc. The normal (if there is such a thing) person could not handle what we see or do. Thats why u see alot of EMS, Fire, Cops, that are into skydiving, X sports, and yes sex, etc. Deep inside you are saying "I can't happen to me".
That my opinion so, take it or leave it.
Chet