This is my first male dog so I'm not used to the whole "chapstick" and humping. Finn is 16 weeks old and a couple of weeks ago he had his first episode of humping. Of course this was with the breeder at a dog show while playing with his brother Nothing since then until a few days ago. He is trying to mount Maggie. She is spayed so there are no worries there and Maggie is a big girl and handles herself just fine. Last night Finn tried to get her (he is still too short) and she swatted his butt to the ground and let him know what was up. While training last night he got very excited while working on downs. I told him to put it away and he did but this went on the whole time. I know he is still young and learning but I just want to make sure I am doing the right things. I don't want him to think he can hump things and it's ok.