Beware, this is hardly a pretty sight.

http://www.youtube.com/watch?v=ZUj8u0eZDBg
http://www.youtube.com/watch?v=REP6NCDfAtg

That somebody takes drugs, I can understand.
That somebody takes drugs despite the fact that it is altering their faculties and loosening their teeth, I might sympathise with.

That somebody takes drugs while their body is rotting before their very eyes and every limb a putrefying mass is something that is altogether beyond my comprehension.

Now, I'm aware this may sound callous... but I just can't quite fathom it.