It’s not.
He just wanted to be high. For whatever reason, he prefers that state of mind to his normal state of mind.
It doesn’t have a single thing to do with a addiction, he is making a conscious choice, and at anytime he could consciously choose to do otherwise, but he doesn’t.
When you are actually addicted to a substance, you have no choice. You either get your dose, or you are going to die, and it will not be an easy death.
That is what actual addiction is. That is when you are a slave.
You get your dose, or you die.
It matters more than food. It matters more than water. It doesn’t matter more than inhaling oxygen, but I guarantee you that the addict is thinking about his dose more than he is thinking about oxygen.
Just because someone is doing stupid things like trying to smoke through oxygen tubes does not mean he is addicted.
It just means he is behaving stupidly.
The question I would ask him is why is it so important to run from a sober state of mind?
What is it that occurs in his sober mind that he is trying to hide from by being stoned?
You are describing a physical addiction.
Marijuana causes a strong psychological addiction.
One of the signs of a psychological addiction is denying that there is an addiction while the behavior manifestly suggests otherwise.
You know...the person that drinks 6 cans of coke a day, but says that they don’t have a problem, they can quit whenever.
I have also found that many addicts will argue with you that whatever they are addicted to isn’t addictive. Ah-hem.