Walked. Apparently their idea wasn't worth $10k. Or they probably didn't think their idea was worth paying 2x hourly rate on top of the deposit.
NDA's and Non-Competes both change my requirements.
Without them my rates are $150/hr with 40 hours pre-paid upfront to discuss the project. When we move forward those 40 hours are credited to them.
If non-compete/NDA is involved, my rate goes to $300/hr with non-refundable $10,000 deposit that does not translate to credits.