In many dog bite cases, the attack was not the first warning sign. Neighbors may have seen the dog lunge at passersby. Delivery drivers may have reported close calls. Children may have been told to “stay away from that house.” When prior aggressive behavior exists, liability becomes much clearer.
Texas law places significant weight on an owner’s knowledge of a dog’s dangerous tendencies. Evidence that the owner was aware — or should have been aware — of aggression can dramatically strengthen a victim’s claim.
What Counts as Prior Aggressive Behavior?
Prior aggression does not require a previous bite. Courts may consider:
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Snapping or growling at strangers
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Lunging at pedestrians
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Escaping confinement and chasing people
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Prior documented complaints
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Previous citations from animal control
These incidents demonstrate foreseeability. If the owner knew about this behavior but failed to intervene, the argument for negligence strengthens substantially.
Repeated incidents may elevate the issue from ordinary negligence to grossly negligent conduct.
The Importance of Documentation
Proving prior aggressive behavior requires careful evidence collection. Useful documentation may include:
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Earlier accident report filings
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Animal control records
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Neighbor statements and witness testimony
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HOA complaint logs
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Video from prior incidents
Securing surveillance footage early is often critical. A preservation letter may prevent deletion of key records.
The injured party must still establish causation and meet the burden of proof, but prior history often provides powerful support.
Injuries and Damages
Attacks involving previously aggressive dogs frequently result in:
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Permanent scarring and disfigurement
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A child dog bite case involving lifelong cosmetic impact
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Emotional trauma such as PTSD
Damages may include economic damages, non-economic damages, and future medical expenses.
In especially reckless cases, courts may award punitive damages.
Speak With a Dog Bite Lawyer
When a dog had a known history of aggression, an attack is rarely a surprise. Holding owners accountable may prevent future harm.
Spagnoletti Law Firm represents victims of serious dog attacks and other personal injury claims. Call 713-804-9306 for a confidential consultation, or contact us online to speak with a dog bite lawyer about your legal options.

