Sheen is one of Hollywood’s most notorious bad boys. We could mock him but the reality is that his addictive personality ruined his life. Sex and controlled substances wreaked havoc on him and that’s why he’s been to rehab many times. His first visit was in 1990 but there have been many since (via Mirror).
Alcohol and drug abuse caused him to behave erratically and even violently toward his partners. Furthermore, he had a serious relapse in 2015 when he revealed that he was HIV positive. Many people sympathized with him but it also forced Sheen to say that he never knowingly transmitted the disease.