Ok it has happened.
 

My 6 month old dog for the first time a month ago started mounting my sisters dogs when we were there. Came home and didn't attempt it with anything here. Had him neutered 12 days ago and today he looked as if he was going to hump my friggin' leg. I pulled him off before he succeeded but what the heck can I do to make sure he does not do that to us. I really don't like him doing it period and hoped he wouldn't but I defiantly do not want him doing it to us. Please help!!!!!

Just keep saying a stern no and push him away. Be consistent..he'll get it. His humping after neuter is a pure issue of trying to establish dominance. Let him no sternly that YOU are the dominant one. You'll probably have to do this several times, but he'll get it eventually as long as you are consistent. :)

ETA: Another thing - he may have a lot of penned up energy. Do you take him for daily walks? This helps 2 fold - it will release some of his energy and also help establish the relationship you want with him (train him to walk with you..not in front of you).

Just stop him. You don't even have to say anything. Just take your hands and push him back, standing and putting your finger forward in a pointing position toward him, lock eyes with him to make your point. You don't really have to say a word. Your body attitude, firmly stopping the behavior, pointing at him while locking eyes will say all you need to say. Stand there looking down at him in the eyes until he walks away. We verbalize so much with our dogs when really our body attitude, eyes and no-nonsense response stopping an unwanted behavior is all that they need many times. Alpha dogs and pack leaders never say a word and yet they get their pack to do exactly what they want and move in to stop and unwanted behavior with eyes, a show of teeth sometimes, a low growl sometimes but mainly with body attitude and eyes, standing their ground until the miscreant backs off and leaves the area.

Dogs forget and are creatures of impulse so he will try it again. Each time just respond in the same way and over time this will teach him that this is unwanted behavior, not to be tolerated. Eventually, he'll feel the impulse to do it and will catch himself, not wanting to incur your reprimand. That's when you just smile and realize you are getting through, though he'll likely keep trying when he forgets. In time, you won't even know when he has the impulse as he will eventually just learn not to do it and his hormones will die out more and more and it won't be an issue unless he is trying to be a dominant dog. Then, just go with one of the free Nothing In Life Is Free techniques on the Internet and start doing obedience work with him. The combination works wonders with a dog trying to start to dominate.

Thanks so much for your help I appreciate it from both of you.

As for walks he hasnt gotten a good walk yet too cold and snowy here to actually get him outside the yard, plus there is so much salt on the roads right now too.

When my mom got there Yorkie rescue Sammy he would hump everything and everyone including the other two dogs so she used a squirt bottle of water and would squirt him and say no and it worked.

Just a word about using aversives as a technique for training or disciplining a dog. You can use them if you want but I'd be advised first on a bit about them. They can turn your dog into a dog that mistrusts you if he tends to anxiety, shyness or oversensitivity. They often do not work on hyper dogs. Sometimes spray bottles of water make the smaller, toy dog that tends to be hyper and sensitive quite fearful of water, fearful or shy of being sprayed with anything such as seeing the plants sprayed, seeing you spritz or spray anything in the air, fearful of being sprayed with doggie cologne or conditioner and/or fearful of you. And the spraying isn't necessary - is really considered an aversive form of training, actually, and unpleasant to most dogs to get a sudden spray of water up the nose or in the eyes. It is a bit shocking to a dog. It can cause them to mistrust you - not knowing what to expect from you - particularly if the dog is a sensitive or nervous dog. They can be shy around your hands afterward, particularly if you are holding anything in them. Aversive techniques are not considered a good training technique and some are even considered a bit abusive. You don't need to train/discipline like that when a dog is doing something you dislike or want to train out of him. Just be firm and no nonsense, use your body attitude, eyes and push the dog to one side, stand and follow-up by locking eyes on him until he backs off and leaves the thing he tried to hum. He will get the message. In the wild, that is how his mommie would stop him, giving a low growl or showing teeth if she wanted to avoiding moving much. After he has walked away, get him a kong toy to chew on, work him at agility, bounce some balls for him to pounce on or anything to distract him from the current humping urge and let him work off the tension. In time he will learn that mommie isn't bad or mean, as the water in the face might teach, but can be trusted to show him something better to do with his time and aggression or the dominance issues he's feeling. It reinforces you as his pack leader and one he can always trust, even when he's doing something you disagree with.

Usually getting a humping dog working at a little house agility, doing a whole lot of jumping up and down the doggie steps for a treat reward or chasing a ball can work that urge right out of him pretty quickly. You can put doggie steps back to back and get him to run up and down them over and over for a treat every so often until the last thing he wants to do is hump, all desire to dominate and tension gone.

Thanks guys.

We actually have tried the spray bottle for other things, it does get his mind off what he shouldn't be doing but he loves the spray bottle.

I like though being able to redirect him in ways that don't require an object I would have to take everywhere with me. I do believe words or just a look helps a lot and I will start doing this. I know Cesar Milan talks a lot about using body language. I love that guy, we started watching his show years ago long before having a dog so he has help us a lot with what we do.