Alert from a lab?

• "That's MY bone!"
• [Don't touch my bone!]
• "Get off my lawn"
• Doberman's warning
• [That makes me mad!]
• "When I get my hands on you ...!"
• "Don't touch my squeaky toy!"
• Ticked-off utterance
• Warning from a small house

Wiktionary Word definitions in Wiktionary
alt. A growl of anger or disappointment. interj. A growl of anger or disappointment.