Final answer:
William's situation of not having a permanent residence is defined as homelessness. While he also has schizophrenic disorder, homelessness refers specifically to his lack of stable housing, not his mental health condition.
Step-by-step explanation:
William's predicament, described as sleeping in a cardboard box behind a Dunkin' Donuts after closing time because he has no home, is known as homelessness. While William also suffers from a schizophrenic disorder, which includes symptoms like hallucinations, difficulty thinking, and problems with social situations, the term that specifically addresses his lack of permanent residence is homelessness. Economic conditions, mental health, substance abuse, physical disabilities, and other factors can all be reasons people experience homelessness. In some cases, such as depicted in the life of Heidemarie Schwermer or in the context of veterans, the loss of stable housing can significantly contribute to or be a result of other underlying social and personal issues.
This complex situation can result from a culmination of various factors, including the fact that William was fired due to chronic absenteeism potentially related to his schizophrenia. These absentee rates may have led to economic instability, culminating in homelessness. It's important to differentiate his mental condition from his living condition because each has its own set of treatments and social implications.