Baltimore City security officers walked off the job for a second time Thursday, accusing city contractor Metropolitan Protective Services of retaliation, wage theft and heat-safety violations. It was a raucous scene outside City Hall, where Service Employees International Union, Local 32BJ members blew up an inflatable rat. She said security officers deserve safe working conditions. We deserve access to water when temperature hits 100 degrees and we’re under a cold red heat warning,” Scott said. State labor and workplace safety complaints are pending.