Sam took a deep breath, then stood tall and had a grateful look on his face. "I've always wondered that. Thanks. I... should go check on my son. Don't let my brother bug you too much."

He turned to leave, walking straight through Dean and then paused, catching his breath. He had a moment of being cold, his hair standing on end as it tingled. Then he just smiled to himself and kept going to head to the medical ward.