(Gabe Meline/KQED) When you're stuck in the tiny, old-fashioned elevator of the Lan Mart building, no one can hear you scream. Upstairs at the Lan Mart. (Gabe Meline/KQED) Anne Bishop—the owner of Pilates With Anne on the second floor—discovered this a few years ago, on her way to teach a class. Because her pilates studio wraps around the elevator shaft, and she knew she had a room full of students waiting for her, Bishop, on realizing the elevator was jammed, called out for assistance. Despite being separated by only a single door, not one person on the other side heard her. "I couldn't believe they couldn't hear me yelling!" she recalls now.