Share 'What kind of dumb are you?'

When I talk to people about things like architecture and design and art history, I usually feel pretty smart. I know a lot about construction techniques, including systems work and finishing. I can hold my own in a conversation about food and wine, AutoCAD and Photoshop, and most kinds of music. But this morning, I feel like an idiot. My brakes on my car started sticking to the point that the ca…