he is not Unconscious instead he is just drunk , it is different mate , he may not know everything but at least part of His mind that knows this is not right yet because of the effect of liquor they are confident to act in such a way.
If a person is drunk, he will not remember what he did after he sobered up. And when he found out from someone else, he would probably be very embarrassed and would not have thought he had done such a shameful thing. The effects of liquor can give you excessive self-confidence to the point that he doesn't even realize what he's doing.
His family never said that he is not sane, but her wife said that someone mixed something in his drink and that is the reason why lost his senses and started behaving like this, he was drugged and it was not only because he wasn't sober, and had some drinks which everyone does when they are in a casino or in a party or something, though I understand that people who get heavily drunk can do such things as well, this wasn't one of those things.
However, the positive part about all this is that he didn't hurt anyone or broke any property when he was out of his mind, otherwise, he could get in serious trouble for that. What he did was just him enjoying himself and making a joke out of himself all over the world for doing that in public.
A person would not know if someone else mixed something in his drink and it could be drugs that make him unconscious of what he is doing. But even so, drinking alcohol can also make him forget everything and even his actions will be out of bounds that he would never expect.
Luckily that nobody hurt him while he was acting like that. If not, the family will surely receive many demands from the victim. Let's hope that was the last crazy thing he did and won't do it again in the future. And he really needs to give up drinking and gambling.