“Nice,” I said. “This setup’s already paying off.” He opened the medicine cabinet and pointed to a small slot built into the wall. “What’s this, by the way?” “My great-aunt told me it’s to deposit used razor blades. I’ve never used it.” “How do you get them out?” “You can’t.” “They’re just stuck in the wall forever?” I shrugged. “So when they tear down this apartment, they’ll find a bunch of razor blades in the wall from nineteen-whatever?” “It was built in 1947,” I said. “So, yeah, I guess.” “Very cool,” he said. “A little time capsule.”