Yup... First time tried the 20x stuff. It was sooooo hilarious. I was the last person to smoke a bowl at my house (about 7 people in a circle), so I'm sitting there, watching each of my friends trip the fuck out one by one. Man.. We all couldn't stop laughing at the shit.
I took my bowl, held it in for as long as possible and fucking STUCK to my chair. I did get up, to speak some nonscene to a friend that got up and went on my computer, and then litterally was pushed back into my chair again. All I remember seeing was the glowing outlines of my friends and the rest was black.
I wouldn't fuck with the shit too often.