"When did you ever see any librarians on a David Attenborough programme?" he asked. "It just doesn't happen does it?
"Oh, they had one on "Zoo Time" with George Cansdale but that was a lifetime ago. Besides they had to shoot it because it bit one of the keepers."
I had to go for my bus when he started explaining why Ann-Ann and Chi-Chi didn't get it on down because of a lack of cardigans and leather elbow patches.