Dog owners may want to buy beware of dog signs, personalized welcome signs or rules for guests. Dog owners may also want to buy signs telling other dog owners to pick up after their dogs or to not allow their dog to eliminate on their property.
In some states, a sign that says "no trespassing" can lessen a dog owner's liability if someone is hurt by their dog while on their property. Some states require owners of aggressive dogs to have warning signs stating that there is a potentially dangerous animal nearby. Owners of non-aggressive dogs have the option of purchasing humorous beware-of-dog signs.