Executives of the bankrupt solar panel manufacturer Solyndra, which received $535 million in loan guarantees from the Obama administration, invoked the Fifth Amendment over 20 times combined, rather than answer questions from the House Energy and Commerce oversight panel looking into their company’s failure.

Over and over again, Solyndra CEO Brian Harrison and chief financial officer W.G. Stover, responded to questions with some formulation of the following statement: “On the advice of my counsel, I invoke the privilege afforded to me by the Fifth Amendment of the U.S Constitution. I respectfully decline to answer questions.”