Question on CoS line

[msshanley]

I've looked at a couple of versions of the CoS scripts to try to 
figure out Molly Weasley's line after Ginny asks where her jumper is, 
but am having no luck.  It sounds like (& one script says this) "It's 
on the cat, dear."  The book doesn't help, there's no corresponding 
dialog there.  Is that really the line?  Why throw that bit of 
silliness in?  And doesn't Ron hate or at least dislike cats?  I 
never had the impression there were any cats in the household.  Can 
anyone help?

Maryanne