Evict the rat
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From: Accepting no further advice
"Now, the next fing you gotta understand about Lond— Argh! Wait! Not you as well!"
Game Instructions: This will permanently dismiss the Dubiously Shrewd Rat from your Lodgings.
Locked with 
Dubiously Shrewd Rat
Success
Out on your ear
It's surprisingly hard to manhandle the Dubiously Shrew rat out of the door. Perhaps it would have fared better as a wrestler rather than an advisor. It has a good line in obscene gestures and dark mutterings, too.
You evicted the Dubiously Shrewd Rat from your lodgings. (Sets 
Acquaintance: The Dubiously Shrewd Rat to 4 - You evicted the Dubiously Shrewd Rat from your lodgings)
