In one fluid motion, Cassy shoved her chair back, sprang her lanky frame to its full height, raised her arms above her shoulders, and shouted: “This table is real!” Then she bent forward and swung her forearms down. Bang! The table shook and everyone jumped in their seats. The outburst made Brad’s stomach churn. What did I say to cause that? His medical experience forced him to look at her arms for signs of an injury. No evidence of broken bones. But that must have hurt. Returning to her chair, Cassy looked around at the dozen startled faces. Her eyes were burning like fiery coals, and a tight frown had…