Some medical marijuana dispensaries in Colorado are working overtime this week.
They're getting ready for Tuesday -- April 20, or 4/20. It's the unofficial day for marijuana fans to celebrate the drug by toking up. Marijuana shops say it's like Halloween week at a costume shop.
In Boulder, the Dr. Reefer dispensary has hired extra workers leading up to the annual 4/20 pot smoke-out on the University of Colorado campus.
The campus event drew 10,000 people last year, and despite school admonitions, more are expected this year. The school bans marijuana use on campus, even for people with medical clearance. However, the campus has issued few citations in years past for pot smokers.
A 4/20 gathering is also planned in Denver.
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