Something frightening them, teasing them, someone or something in their territory, not enough attention, etc....
The annexation of the Republic of Texas.
because their strength convinced France to cease their attacks on American ships.
Antinous becomes angry at Irus for challenging Odysseus to a bum fight but then being reluctant and fearful once Odysseus' muscular thighs were displayed. He is mildly angry at Irus for losing to Odysseus. Antinous becomes angry at Odysseus for begging for food from him. Odysseus berates Antinous' refusal and continues to beg for food from him. Antinous then gets angry at Odysseus for cursing him with a bad end before his marriage. Finally, Antinous gets angry at Odysseus for having the gall to ask to attempt to string the bow.
they were angry because how they were getting treated by the king.
All people have a moral obligation to help those in need. To neglect this responsiblity causes great suffering and makes God sad and angry.
That someone messes with their nest.
Juliet teases the Nurse by intentionally drawing out information about Romeo, causing the Nurse to become frustrated and angry.
feeling keyed up
Feeling Keyed Up
The restaurant is Expesive
The big dog is very angry
Angry Dog - 2014 was released on: USA: 9 March 2014 (internet)
Either is correct. But never hit the dog, no matter what it did.
The dog could feel angry, upset, threatened
jammy
An alternative term for a thought or event that causes anger in a person could be an incitement or a provocation.
A Caucasian Shepherd might become angry due to feeling threatened or protective of their territory. To handle their aggression, it is important to remain calm, avoid provoking them further, and seek professional help from a dog trainer or behaviorist.