I wonder if it was a thing like Zen's where context or lifestyle threw him? With the amount of building in Austin area and that he told me once he was building a new house I am *pretty* sure he has seen a sidewalk before they pour concrete because for some reason the re-mesh sits for about a week. But some people don't notice the world around them, my husband is one. But he knows what rebar and re-mesh are from working at Lowe's through college too. 
The same doc's advice for a good sunscreen "I like this kid's banana boat stuff when I go out on the boat." I was hoping for a little more concrete answer buddy. I just researched it and asked my gyno of all people since dermatologists have a ridiculously long wait. I switched to the other doc in the practice who seems a little more in tune with the world.
Amanda
2011 Specialized Epic Comp 29er | Specialized Phenom | "Marie Laveau"
2007 Cannondale Synapse Carbon Road | Selle Italia Lady Gel Flow | "Miranda"
You don't have to be great to get started, but you do have to get started to be great. -Lee J. Colan