Cormier v. R., 2022 NBCA 44, September 22, 2022, at paragraph:

Vengeance leading to criminality can take many forms. At one extreme, it might take the form of vigilantism where retaliation is the result of careful planning and – 8 – deliberation and, at the other extreme, it might manifest as retaliation in a momentary lapse of self-restraint. The moral blameworthiness of the former is clearly more significant than that of the latter. It follows that, having concluded a crime was motivated by vengeance, a sentencing judge must then determine where, on the spectrum of moral blameworthiness, the level of vengeance falls.