Using chloroform to incapacitate a young man is a hot fantasy for many, but the purchase of chloroform is practically impossible. While you can make your own chloroform from recipes readily available online, be aware that is it very dangerous, easily resulting in permanent kidney damage or even death. If you really want to knock a guy out, then slipping rohypnol into someone's drink is a much more safe for both the victim and the perpetrator. Kidnapping a muscular college jock is a turn on for me, and chloroform is time consuming and clumsy. Rohypnol allows you the opportunity to sit back and watch as the drug slowly takes effect.