Fear gets a bad rap. It's a so-called negative emotion, one that supposedly stands between us and our dreams. It is certainly true that pure fear doesn't feel good, but that is the whole point of the emotion. Fear tells us to get the hell out of Dodge because Dodge is a bad place. Fear evolved over millions of years to protect us from danger. So, yes, a feelbad emotion, but also, and perhaps paradoxically, the engine in a whole range of pleasurable activities and behaviors — which inspire what we can call recreational fear.
Once you start looking for it, you'll find recreational fear