Unbalanced Play: Bigger dogs may have more strength and weight, which can throw the smaller dog off-balance or overpower them, potentially leading to falls, injuries, and trauma to joints.
Neck Injuries: In the heat of the game, bigger dogs may shake their heads or violently tug, which can put stress on the smaller dog's neck, potentially resulting in neck strains or even more severe injuries.
Choking Hazard: As the smaller dog lets go, the bigger dog may still be holding on to the object. If the smaller dog has a part of the toy or rope in their mouth, there's a risk of choking if the bigger dog pulls too forcefully.
Accidental Biting: In excitement, the bigger dog may accidentally nip or bite the smaller one, causing unnecessary discomfort and potential punctures.
Resource Guarding: Some dogs can develop a sense of resource guarding over the object used for tug-of-war, which can lead to territorial behavior and the smaller dog may become anxious and defensive.
To ensure the safety and well-being of your smaller dog, it's recommended to monitor and control the game between them and a bigger dog, or consider alternative activities that are less physically demanding and potentially risky.