Sometimes the dog's pain is obvious, and you can be ready for possible aggression. (animals.howstuffworks.com)
If the visual loss is coupled with a hearing loss, an area of concern is possible aggression if the dog is reached for or touched while sleeping. (siriusdog.com)
For example, instead of writing a Tweet reminding clients to get their pets spayed or neutered, take a moment to address possible aggression and other pet health concerns that may result from non-compliance. (lifelearn.com)