Excuse me, rabid fan-boys: do not smoke weed in front of Britney Spears!

No seriously don’t, or else she’ll walk off the stage and later scold you for your smoking habit, and getting scolded by a woman in a top hat, fishnets, and bedazzled bra isn’t as fun as you’d think it would be What goes up download.

In Vancouver last night, Britney walked off the stage after her opening number. The lights went off for about thirty minutes. Later in the show, Spears told the crowd: “Vancouver, don’t smoke weed.”

Was everyone getting high at the Circus tour? I wouldn’t blame them–frankly, her show seems like one of those things that gets better under the influence–but apparently, according to an announcer’s message, the smoke was causing the stage to “become uncomfortable and unsafe for the performers, including Ms. Spears.”

Lesson learned? I don’t know, there’d have to have been a lot of smoking going on for conditions to get that bad. Anyway, Britney didn’t seem all that miffed about it by the end of the show: she gives Vancouver her anti-drug message almost flippantly, like one of her producers called her up and told her to say it. Watch for yourself here.