Dog
The behavioural reliability of Canis lupus familiaris represents one of evolution's more remarkable achievements. A dog greets its owner with identical enthusiasm whether said owner has been absent for five minutes or five hours. Studies indicate dogs maintain 97.3% consistency in positive greeting behaviours regardless of external circumstances. The dog does not reconsider its affection based on new evidence, does not reverse earlier tail-wagging decisions upon appeal, and demonstrates no discernible variation in loyalty based on jurisdictional interpretation.
Justice
Legal consistency presents rather more troubling statistics. Research published in the Journal of Legal Analysis reveals that identical cases presented to different judges produce divergent outcomes in 34% of instances. Sentencing for equivalent offences varies by up to 400% across jurisdictions. The concept of justice itself shifts dramatically across temporal and cultural boundaries. What constitutes justice in one century becomes injustice in the next. The system, whilst striving for consistency, operates with considerable variance.