I purchased mine back in 1980, and remember being accosted by a young Muslim who spied me reading it. "You must not read that book!" he yelled at me. At which I promptly showed him my digital salute and continued.
One of the most telling things I ever saw was a Jeff McNelly cartoon:
The Ayatollah driving an ox-cart over a hill...
... the sign beside the road read:
"Leaving 20th Century
Please Dim Lights..."