No one here has claimed (I believe) that cannabinoids are not drugs, they are indeed chemicals, very similar to the endocannabinoids produced within your body. However your friend could abuse video games in the same way... I've seen it happen with my own eyes. And they're not even a drug But video games, along with anything you develop an attachment to, do cause chemical reactions within your body... what I mean to say, is that if a person has mental issues, dependency issues, or any other hang-ups, these issues are just as likely to manifest and become exaggerated when that person abuses anything, whether it's the sensation he gets from certain foods, certain drugs, or even the chemicals released within his very own body, after certain interactions. Yes, you can abuse yourself and your own hormonal-chemical releases. Some people get unhealthy satisfaction from being timid, some people 'get off' on being abused, some people feel they can't exist, without the rush they get from feeling violent. In 99 out of 100 people who use cannabis however, probably more, they will not develop these types of irresponsible dependency issues. A person who is not generally prone to instability or addiction, is more likely to develop problems with the caffeine in coffee, and the 'natural stimulants' in energy drinks, than they are with cannabis. That much has been proven, even grudgingly, by institutes while trying to discredit the value of cannabis. Your friend has serious problems, or he could be in the early stages of developing serious problems, and he very likely has a few self-worth/value issues considering his hygiene, and the general lack of interest in both himself, and those around him. He needs to either seek help, or he just needs to grow up. His behavior is sad, and it's going to be tough, either way. But in the end, you don't need to validate the fact cannabis has chemicals, just because your friend has issues. Roses have chemicals too, and without even needing to 'abuse' them, different people have devoted their entire lives to roses and their study in ways that affected their psychology and their social lives in both healthy, and socially-unhealthy ways. A 'problem' is defined by the person, not the substance, and there are other more seemingly-harmless substances that are much more likely to trigger a negative reaction, in other-wise healthy people. It's all in how you deal with, and react to your surroundings... if someone can't handle a little herb, or a few video games, they shouldn't be mocked, ridiculed or shamed, or isolated further... they should be helped. And that help shouldn't focus entirely around their 'addiction', not so much as it should focus on their their feelings, on what they are really avoiding, or what's really getting at them. Hope this helps.