So the GMIT where I work was talking to us about a recent situation. I think he said he was smoking some synthetic pot that he got off a friend and was just sitting around with his girlfriend and another friend smoking it. I think she was smoking too but not what he had, while his friend was smoking his same stuff. He said he started to feel really hungry and lightheaded, which he found weird because he said weed never affects him. I think he said he went to stand up and started seeing colors and hearing shrill noises and passed out. He said he briefly woke up to see him girlfriend worried standing over him while he laid in the remains of the coffee table that he'd fallen on and destroyed. He then vomited all over the place and passed out again.
His friend on the other hand ended up standing in the front yard hugging a tree while shaking stark naked because he thought the ground was lava. That stuff must've been laced with something potent.