I recently found out my daughter (who is 11) has a friend whose parents had a party where they were doing drugs such as coke. They are quite "well to do" and seem to be raising their kids with good values etc. I suspect they would never do it if their children had friends over for a sleepover etc but I can't know for sure and I can't ask them about it as was told in confidence. But it has made me worry. AIBU to not allow my daughter over there any more?