The morning after the soup kitchen fire, the guardians received a phone call from the organization's executive director, who explained that the board of directors was meeting later that week to discuss the incident and its aftermath. The executive director's tone was measured but concerned, and she mentioned that the organization's insurance carrier had already dispatched an adjuster to assess the damage. As the guardians processed this information, a troubling question began to form in their minds: could they personally be held responsible for the actions of the dependent adult they had cared for over so many years? This question strikes at the heart of one of tort law's most complex doctrines—vicarious liability—and understanding how Alberta courts apply this doctrine to guardian-dependent relationships requires careful examination of both historical principles and contemporary legal developments.
Vicarious liability represents a departure from the fundamental tort principle that liability should attach only to those who commit wrongful acts. Under ordinary circumstances, individuals bear responsibility for their own conduct and the foreseeable consequences of their actions. However, vicarious liability operates as an exception to this rule, imposing legal responsibility on one party for the tortious acts of another, even when the responsible party has committed no wrongdoing of their own. This doctrine finds its most common application in the employment context, where employers may be held liable for torts committed by employees acting within the scope of their employment. The rationale underlying vicarious liability in employment relationships rests on several policy considerations: employers benefit from the activities of their employees, employers are generally better positioned to absorb and distribute losses, and the imposition of liability creates incentives for employers to exercise care in hiring, training, and supervising their workforce. These policy foundations become considerably more complicated when courts consider whether to extend vicarious liability principles beyond the employment context to relationships such as that between guardians and dependent adults.