Obtuse: lacking in insight or discernment; dense: slow to learn or understand; lacking intellectual acuity;
Actually, I think creationists like Ray Comfort isn't obtuse, I think he is deliberately lying for his own gain. He has a lucrative gig with his creationist character and is milking it for all it is worth.
After the talk was an even longer Q&A session that was wide ranging and quite interesting. I had a couple of questions but held them to myself... hard to break the shyness barrier. I did at the end get PZ to desecrate (sign) Allena's copy of the Comfort edition of Origin of Species. That was pretty funny.
At the post event beer and pizza at BJ's in Cupertino, there was too much noise from the football game to hear what was going on at PZ's end of the table, but we had some great conversations at our end with some young people. Very nice time!