My ferret hears me call her "you little brat!" more than her actual name
Zoe. However, the best nickname I've heard came from my girlfriend's mom,
who calls Zoe a "pipe racoon," because it "looks like a racoon blown through
a pipe."
 
Markos (and Zoe "I am not a weasel, and I'm definetely not a rat!")
[Posted in FML issue 1384]