Vicarious liability refers to an employer's accountability for damages and injuries caused by their staff members' mistakes or wrongdoing. In the given case scenario, Susan approached Lima Auctioneers for a free valuation of her antique furniture, which was inherited from her grandfather. Brad, a furniture expert employed by Lima, visited Susan's flat to provide the valuation. Despite being instructed not to give advice outside his expertise, Brad incorrectly valued a painting and advised Susan that it was of little value. The painting was later sold for £100 to an elderly neighbor, who thought it would look great in her sitting room. Weeks later, Susan read about a rare Rembrandt painting sold for £100, realizing she had been misled. This case applies the 'tort of professional negligence misstatement', where an inaccurate statement is made honestly but carelessly by one party to another, causing loss and damage.