Thanks Googley. In the morning both my daughters go on the same bus and not together on the afternoon bus. My oldest is at a different school since grade 7. On Friday my oldest decided to talk to the oldest sibling - she told her "since you're interfering and bothering my sister, you give me no choice but to stick up for my sister". She said "make sure you, your siblings and your friends don't bother my sister ever again or else you and I will be having another talk".

When my youngest came home, I asked her how her day went and she said they totally didn't bother her. Maybe it was because of my oldest or the principal or both IDK but I hope it stays this way. Form the beginning we were willing to drop everything and interact normally, but they carried it on. I hope it remains this way - fingers crossed.