NSFW Why are crazy people better at this or are they?

It seems to be an accepted truth among single people that crazy people are crazy good at sex.

I have heard countless ancedotal tales and have one experience with it myself. Since that time I have given the theory more credibility and have heard several more tales.

But when I ask why no one seems to really know. I have speculated that they have less inhibitions. Then someone pointed out to me that drug or alcohol users also have lowered inhibitions but that is no indication of prowess.

Now let me also say that being sane or not on drugs doesn’t mean you can’t have great sex.
For which I am insanely grateful for.

So thoughts, stories, refutation? Come one, come all.

And by the way I realize this question is not politically correct. It is not my desire to offend either the crazy, sane, or the drug users… or those not so fantastic at sex. Practice people!

Labels are used because they are helpful at clarifying my question so others can understand it and agree or disagree howsoever they choose.