In a lot of ways this is so sad, but can't help but watch it.
When I go to a bar or when I am doing my DJ side gig, I tend to people watch. I see these people who are either wasted or just so over the top (and possibly on some kind of drug). Personally, I think it's good for you. It serves as a reminder to be thankful for what you have and your health and... your teeth.
Addiction is a bitch.