Agreed, this was how we interpreted why the owner was reporting this change. We have rephrased this section now.
Line 366-369= I'm not sure it's totally fair to interpret this (the dog not always bringing toy when greeting them) as an anthropomorphic interpretation on the part of the owner- the anthropomorphic interpretation seems to be from authors of manuscript not owner? They do not seem to state dog is favouring them less unless text was omitted here.