Dogs don't like being hugged!

[Carruthers]

It baffles me when researchers refer to 'dogs' doing a particular thing, or liking or disliking a particular thing, because in my experience, they are as individual in their likes and dislikes as humans are.

Got it in one. They have their own quirks, foibles, likes, dislikes, tastes, habits and routines.

A better word eludes me, but I'd go so far as to say that each has its own 'personality'.