I agree.......and disagree.
"The shakes" have to be there IMO or what is the point?? If hunting doesn't get you excited then find something else that does. After all it is what everyone strives for in most walks of life. People want excitement at work, at play, in bed..........and so on. Drug atticts spend a lifetime chasing that original "high".........gamblers always are looking for "action".........people jump out of planes and ride roller coasters every day for a "rush" of fear and excitement. Epinephrine is not a bad thing
Having said that........I also take pride in being able to stay focused on what I have to do when the time comes. I have never had a "melt down" or "freaked out" or got a touch of "the fever". In my mind that comes from being over prepared and overly confident in my equipment. I think when people spaz-out when a deer comes by it is because they are not confident enough that they can seal the deal and they panic.
So I do think there is something to be said for being a rock solid "predator" at crunch time...........but if your heart isn't racing and you are not fired up before, during or after the shot then you have lost touch and become a little too mechanical..........take up golf.