I have been too high one time, but it was still a fun time. It was several years back and one of my first times smoking , and I smoked with my bro, who had smoked a lot before so he was used to it. He had gotten some pretty good weed and we smoked it with some of his buddies, and I got so high that I started thinking some random shit and literally got lost in thought. I sat there for over an hour just thinking about something random that I didn't even remember after I came to, but it was pretty crazy.