Mar 25, 2014 Rehabs.com found that one of the most successful ways to raise drug awareness is to show substances’ harrowing impact on a user’s face over time. May 24, 2017. Signs that someone is on crack and potentially has binged can include extreme irritability and paranoia as well as restlessness. In some instances, a large amount of crack may lead to a complete psychosis. Signs that someone is on crack and experiencing psychosis can include a loss of reality and hallucinations.