This billboard did a good job of getting the word out. Too bad it wasn't for a car insurance company.

In Moscow, Russia, a moving billboard featuring a woman's breasts caused over 500 car accidents in one day, according to the Daily Mail.

The ad was placed on 30 trucks throughout Moscow in an effort to show off the visibility of mobile advertising.

While the stunt seemed to work for a while, after accidents started to pile up, the trucks were impounded by Moscow Police.

A total of 517 car accidents were reported. See the scandalous billboard here.

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