Grandpa LaGee was once set to the drunk tank. Unfortunately, when they called Grandma Betty she told them to worry instead of punish him cuz he didn't drink! It turned out he was having a problem with his diabetes. If he had been low, it would have killed him too fast so I suspect he was HI and ketonic. He was lucky... He might have hurt himself or WORSE - hurt someone else simply because he wasn't sober-minded.
There are plenty of things you can consume that will mess with your head.
For some, there are also things that will mess with your heads if you DON'T consume them