NASA marijuana experiments hoax – Purports that NASA has paid volunteers to smoke cannabis and lie in bed. NASA has never done the former, but has done the latter.
Planet X637Z-43 – Purports that NASA observed a planet covered in cannabis. No extraterrestrial life has ever been found.
No deaths attributed to cannabis – listed by California NORML as myth, due to elevated accident rates among users.[5]
Marlboro M hoax – Purports that American Marlboro cigarettes containing cannabis have been produced in green labeled packages. The images of the packaging were created for fake news website Abril Uno (April one, i.e. April Fool's) in January, 2014 and covered by other fake news websites like Now 8 News.[6][7]
The Nizari Ismaili were a Shia Muslim sect, founded in the 1080s, who earned a reputation as ruthless killers. They were known as hashishi, hashishiyya, or hashishiyyin (from the Arabic al-hasziszijjin, "hash-eaters"), whence the English word 'assassin' is derived. Westerners believed that consuming the drug put them into a murderous trance. No Islamic sources describe the Ismaili as consuming hash, and since the 20th century, historians have been of the opinion that the Ismaili were in reality never believed by their contemporaries to consume hash - instead, it was used as a term of abuse.[8] The myth or legend was repeated by Federal Bureau of Narcotics chief Harry Anslinger during his 1930s anti-cannabis campaigns.[9]: 94
McDonald's marijuana lounges – One of several McDonald's urban legends purports that the company's restaurants in Colorado are converting children's playgrounds to lounges for on-premises cannabis consumption. Circulated via Internet fake news sites since 2015, and has been disavowed by a McDonald's spokesperson.[10]
Amtrak smoking cars – In 2022, a satirical Buffalo Chronicle story about Amtrak selling cannabis onboard U.S. trains, and allowing consumption in designated smoking cars, at the urging of Senate Majority Leader Chuck Schumer, a proponent of cannabis legalization, was reprinted in its entirety in Railway Age along with commentary. The story had Schumer saying the regulation "will improve the passenger experience and increase ticket sales".[11]