Candice,
I can see 2 possibilities (but I'm sure there are more). They both are trying to get as close to the edge without getting caught.
1) A person who doesn't want to be outed, but takes chances because of the need to be their true self.
2) A thrill seeker who pushes the boundaries of what is safe for the adrenaline rush. After a while they would have to take more chances in order to get the same thrill.
