Good point, Robyn seems to have had a relationship with GG based on her dysfunction and possible alcohol / drug dependence. I also think she looked to him as her "sugar daddy" so to speak.
I also agree that some people, especially heavy drinkers, and even more so those who have drug addictions would have difficulties drawing boundaries between what they should or should not do when it comes to something they normally do when in a sober state of mind, such as driving a car. However, in this situation I tend to go in a different direction since this isn't second nature like driving a car, at least not for most of us who grow up driving.
On the other hand, going snorkeling in the ocean on an unfamiliar island, is really a completely different situation . I don't believe from what I have read or heard reported, that Robyn was anything close to being an avid snorkeler. This wasn't Robyn engaging in a task that she has done for years, such as getting in a car and driving down the road. Going snorkeling in the ocean entails doing something quite beyond what is considered ordinary. Which means that the sense of inhibition would still be there, intoxicated or not.
The thing is, intoxicated or not, if it's something one has inhibitions about when one is sober, the inhibitions are still there when one is not. It's just a matter of degree. If one doesn't normally like to swim, etc., why would they decide they liked to swim just because they are a little drunk.
Add to that, the fact that snorkeling entails much more than swimming anyway. There's the gear, and there's the technique of snorkeling which requires keeping the end of the snorkel positioned up above the water so you don't suck in water and aspirate it. The fact is, there's a little work involved in snorkeling. Who would do that in a intoxicated, drugged state?
So it is for these, and other reasons as well, that I simply can not see it playing out the way GG claims it did, but that's JMO.
