We have a pair of 3-year old female goats (cross between Nigerian Dwarf and Pygmies), bought as pets for my older daughter. The lead goat, Gaby, has increasingly problematic behavior--butting me and my daughters (ages 7 and 13), constantly rearing up in challenge at us, etc. We have covered her horns in rubber tubing to prevent goring (she gored my sister's leg 2 years ago), but I don't know how to manage her increasingly aggressive behavior with people, other than by just keeping her penned up all the time (which we might have to do). Any advice or insight appreciated. We have tried both a dog-training horn and a spray bottle, without much success (though I don't know if we used either long enough of consistently enough).