MENLO PARK, CA—Amid grim reports that several engineers working in the virtual reality server room had been violently dismembered, Facebook headquarters were on lockdown Friday after Mark Zuckerberg’s avatar reportedly Came out of the metaverse. “At approximately 8:02 a.m., a security breach was detected in our Reality Labs sector, at which point Mr. Zuckerberg’s Meta avatar was able to open a portal, escape his virtual meeting space, and enter the physical world. Meta said. Security chief Robert Psilakis added that the 3D rendered avatar, which had green eyes, brown hair and no legs, was floating through the halls of the building. The avatar reportedly danced, sang, and laughed maniacally as he methodically smashed…