This reporter’s first time smoking marijuana since he was a youngster also seems to be his last. Channel 4 News’s Jon Snow was asked to help analyze the effects of two different types of cannabis, “skunk,” and “kush” on the brain as part of “a ground-breaking scientific trial.” After what can only be described as an out of body experience, Snow has a new name for the strain of marijuana he was smoking: “aggressive filth.”

“I had sucked in two huge gulps of the stuff before I started spluttering,” Snow said in a blog post. “I am not a smoker, and the skunk was being delivered in vapour form — two huge balloons of the stuff. The first balloon was dilating slowly. I increased the strength of my gulps, spluttered more, and after some five minutes had consumed the lot.”

The segment starts off with Snow finishing off a sizeable inhalation of marijuana via a vaporizer at University College Hospital. What happens next comes straight out of any stoner movie featuring a first-time smoker taking their inaugural bong rip. A few minutes after entering an MRI machine to examine the effects of cannabis on Snow’s brain, and the veteran reporter calls for an end to the experiment. “I don’t think I want to do this,” Snow said. “It’s horrible. Can you let me out?”

“It felt as if my soul had been wrenched from my body,” Snow tells the camera 20 minutes after his initial hit. “I felt slightly separate from myself.”

According to Snow, 25 percent of all psychosis cases in Britain are linked to marijuana.