My min pin was spayed, she is a year old now, she has lately been acting like she wants to mate with my wife's feet,specifically the toe.there is no blood involved and I asked the vet and she said that this is strange behavior.is it

We just had a discussion on a similar note, https://www.askmehelpdesk.com/dogs/neutered-but-still-humping-60390.html As in the other thread, much of the humping is about who is top dog, not sex. Some dogs express their dominance in different ways. Dogs see all the people and dogs in the household as a pack with each having their own rank in the pack and a top dog. Life is much easier if the 2 legged pack members outrank the 4 legged ones. You can learn to play the role of top dog by reading some books or going to a good obedience class. A good obedience class or book is about you being top dog, not about rewarding standard commands with a treat. Start at Raising Your Dog with the Monks of New Skete (http://www.dogsbestfriend.com/) For more on being top dog, see Establishing and Keeping Alpha Position (http://www.dogbreedinfo.com./topdogrules.htm) It is common as dogs mature to develop behaviors challenging the rest of the pack. She is ready to take over from your wife as the top female. I would suggest if you wife dissents, that she is the one that does the obedience training.

For a list of good books, see https://www.askmehelpdesk.com/dogs/information-articles-our-dogs-expert-labman-53153.html#post251804

I am a little surprised the vet found it strange, perhaps the toe fetish.