Chris isn't exactly known for having the best willpower, so it would be easy for people to get him hooked on anything. The Teen Troon Squad did introduce Chris to weed, and amazingly, he didn't get addicted to it. The harder drugs on the other hand...
The bizarre thing is even without taking drugs, Chris, somewhat looks like an addict (the hair, the sunken eyes, his completion), but that's because the motherfucker hasn't been taking care of himself in the last couple of decades.
With the way he coped with Bob's death, with Barb, it's not going to be pretty. At first, Chris 'predicted' that Barb was going to turn into Barbchu. Now, he'll turn Barb into the next MLW.