Ok, one time, there was like 5 or 6 people at my house and we were all smoking out of this bong... i mean yeah, i know you would get really high from it, but for some reason, my sister started flipping out. she like didnt know who anyone was in the room, including me and her best friend, she only knew one person and she kept holding on to his arm and like scratching him. she was also saying something... like muttering to herself about killing someone and all this weird shit. Then, not only did she not know anyone but she was sitting there looking at this girl who was her best friend and she was scared of her. She was like, "who the hell r u?" everyone was having a hard time handling her because she was scared of everyone and she kept trying to go outside in the dark(who knows y) and seeing as everyone else was really high, we were trying our best to calm her down but somehow she snuck outside and disappeared for like a half an hour...we went out and called her w/no answer...then she finally came back..somehow we got her to go to sleep and then in the morning, when we asked her about it, she had no clue what we were talking about. She didnt remember any of it. Now i KNOW this is not normal. All we did was smoke weed. I have never seen or heard of anything like this happening from marijuana b4. I was thinking maybe there was something else in the weed but then again, it only happened to her. It was like she was possessed or soemthing. what do you think?