"Drinking too much alcohol on a commercial flight can lead to terrible consequences, and we take these cases very seriously."

U.S. Attorney Troy Eid, discussing the case of a woman who got drunk on a flight from San Francisco to Denver, abused her children, assaulted a flight attendant, and ultimately needed to be duct-taped to her seat. 

Source: Rocky Mountain News, "Mother accused of beating children on plane indicted," 7/26/07 

Would there have been such terrible consequences had the woman used too much marijuana before getting on a commercial flight.