I once had a patient, Dan (not his real name), who lived with a woman and her two twin daughters. The daughters were terribly spoiled and gave Dan a miserable time. They wouldn't listen to him, they trashed his house, and refused to show him any respect. After about a year of living with the three of them, he got sick of the insolence, flew into a rage, and threw them out.
A few days later his girlfriend called him. "You need to tell your doctor when you see him that your Zoloft isn't working."
"My Zoloft is working fine," he said. "I threw all three of you out and I don't give a s**t."