Mad as a hatter

Posted by Gary Martin on March 17, 2011 at 08:28

In Reply to: Mad as a hatter posted by Mark ellerby on March 17, 2011 at 08:19:

: Are the phrases mad as a hatter and mad as a march hare still used today. Would someone reading Lewis Caroll need to have the origins of these phrases explained?

Google says yes - and no. See [Dead link removed - ed]