I recently taught my pet the ability cower to use in case of an emergency. I intended to use it for whenever it was low on health and needed attention to be drawn away from it. After testing it out, however, I discovered that my pet uses cower even when it is not activated. As a result, it is used alongside growl, making it less effective. I wanted my pet to unlearn it, but I found that the only way to do this was to go to the pet trainer and unlearn all of my pet's skills. I wish this was not necessary, but it seems to be the only way.
My concern is regarding training points. Would I have to spend them over again to have my pet relearn its skills? The more powerful ranks can be very costly, and to save up enough I would have to level my pet many times.