Are you claiming most poisoners act randomly and would continue to do so after release? What's your basis for that? Poison is often used as a method for specifi

Are you claiming most poisoners act randomly and would continue to do so after release? What's your basis for that? Poison is often used as a method for specific assassination/murder, and murder is sometimes committed in scenarios of domestic violence or taking out personal grudges. Why would people from those scenarios then go on to poison fast food customers?