I don't want to go into too much detail, but I've had problems with a particular group of mums at school. I keep trying to rise above it, be pleasant and get on with my day, but I dread drop off and pick up times.
It all started when my kids were chosen to do different things at school, given responsibilty for jobs in the classroom etc. I have had nothing to do with it, the teachers made the decision. Since then it's been pathetic, they've made a point of walking directly in front of me and turning their backs, whispering and ignoring me when I say hello (I know it sounds ridiculous). I never thought I'd be dealing with this as an adult.