Hercules is only 15 weeks old and he has started humping people. I'm pretty confident that this isn't sexual for him but I can't find anything in my books about why else he would be doing this. I'm also wondering what, if anything I can do to stop it. I gave him a "hump" toy, hoping that he would use it instead of my arm, but he doesn't. Was this the wrong move? I just don't want him to be the dog that humps everyones leg.