Simple question. What activity has filled you with the most "go fast" brain juice.
When talking about love
It was about six years ago, and it was one of the most painful rushes I've had. It came out of nowhere too, as I was about to sleep. It kept me awake for three hours, and felt like my chest was about to explode. Strangest thing ever. It happened again some months later, but shorter and only was at my arms. Since then, rushes like those never happened again, but fuck was it both awesome and strange.
When I was 14, I'd sneak the family car out at night. It was a whole process of waiting until midnight, pacing nervously back and forth, then easing the car down the driveway undetected. Never got caught but man was it thrilling.