Why did Portland-based Shaking The Tree attract a surprise $30,000 arts grant--a gift founder Samantha Van Der Merwe didn't request or apply for? How can other artists and arts organizations learn from her experience? Louanne Moldovan, Arts Seen and Heard's theater expert, talks to Van Der Merwe about the grant from the Robert Rauchenberg Foundation, which gave grants to 20 groundbreaking arts organizations nationwide.