"He just seemed not all there, while we were at the bar he kept asking me to explain what some of the words I was using meant. He refused to take off his coat and awkwardly started swearing. He would ask me to come back to his place each time I finished a sip of my drink. The next day I told him I wasn't interested in seeing him anymore, then he asked me for a refund of the drink I offered to pay for but he insisted on buying." - Reddit user TriggeredQuilt