Darwin Candidate

A person lacking any reservations about doing incredibly stupid things which could lead to their demise. Almost as if natural evolution had removed self preservation from this person's thought processes. Juggling loaded guns or making the same breakfast everyday for a serial killer who gets tired of routine things. There is a level of certainty to which this person will eventually succeed in creatively thinning the gene pool for specie, for the better. Hopefully, before they have a chance to procreate thus creating another generation of Darwin Candidates.

Dave: "Hey guys, I have a great idea! Let's all go on a moped, outdoor camping safari in Africa.
Tom: "Don't you think that is a little dangerous?
Dave: "Nah, I have .22 calibur handgun if anything goes wrong.
Tom: "Dave, have you ever heard of a Darwin Candidate?"
Dave: "Nope, don't care. I am such a good shot, I can kill anything. ... (10 minute tirade of how he is the best at everything)"