In such situations, there may be no hidden agenda behind humping other than entertainment.
Hypothyroidism has also been linked to humping behaviors.
While it's difficult to prove whether repeated humping is a component of obsessive/compulsive disorder, or merely a learned routine, a dog that is allowed to repeat this behavior over and over may develop such a strong humping habit that it becomes a problem.
* Obsessive/compulsive disorder: While it's difficult to prove whether repeated humping is a component of obsessive/compulsive disorder, or merely a learned routine, a dog that is allowed to repeat this behavior over and over may develop such a strong humping habit that it becomes a problem.
* Medication: Corticosteroids--such as prednisone--can cause behavior changes in dogs that may include humping.