For the average person, it is very difficult to understand why someone would want to ingest such risky materials.
Dr. Donald Malone, director of the Center for Behavioral Health at Cleveland Clinic, said the reasons are complicated. Sometimes, it can be blamed upon developmental delays, mental retardation or autistic spectrum disorders. Sometimes, the reason might be impulsive behaviors without the rational thought process that prevents most people from doing the same thing.
For others, the reason might be is self-injury. With that self-harm comes attention, and some people want that attention whether it is in a positive or negative form.
Needs mental help.