Odds are good that we've experienced incarnation as at least several different racial/ethnic backgrounds and mixtures. Makes me think that the whole reason that we have different races is so that we can more deeply experience divisions and otherness and then come to realize that spirit is beyond all of this!
I kinda like to set my mom off too! In fact I am sure that she and I have had a lifetime together as mother and daughter in India, yet she is TERRIFIED to travel there and thinks that she'll die of some bad food/disease/ parasite or some such. I find it quite amusing!