Was just talking to DP last night, actually arguing about who should get the lie in 
when it transpired that we both feel adrenaline totally differently.
I always think of adrenaline as a response to fear, it's not a pleasant feeling for me, and I've never been a thrill seeker. I don't even go on big rollercoasters or watch horror films unless the storyline is very interesting to me. The idea of bunjee jumping, etc, is about the worst thing I could imagine.
Whereas DP is the opposite, really likes adrenaline rushes and would go looking for one, his favourite activity is rock climbing because of the adrenaline rush. I enjoy rock climbing but more from the sense of "Look what I did/can do!" I really don't enjoy the sensation that I might fall off. But maybe I've misunderstood? 