Posted 2012-September-28, 21:24
http://tinyurl.com/8odp7h7
Gib can bid 3
♣, but cue at 3 level is just wrong. In addition it explains the cue as 4+ diamonds.

Yu
Yehudit Hasin
"But I don't want to go among mad people," Alice remarked.
"Oh, you can't help that," said the Cat: "we're all mad here. I'm mad. You're mad."
"How do you know I'm mad?" said Alice.
"You must be," said the Cat, "or you wouldn't have come here."