A Scottsdale woman high on "whippets" tried to stab a security guard according to court documents.
Police say that on Jan. 7, 21-year-old Navia Lee Vavages of Scottsdale was huffing nitro whip near Country Club and Rio Salado Parkway in Mesa.
A Security guard confronted Vavages, who cursed at him and tried stab him with a butterfly knife she pulled from her pocket.
The security guard called police watching Vavages as she fled. Police say they found Vavages at a nearby convenience store.
They found the knife and several empty nitrous oxide cream charges and several more full ones.
Vavages has been charged with aggravated assault and possession of a vapor-releasing substance.