I have a toddler and made friends with another Mum at nursery and her husband. Anyway my friend from childhood has been going through a bad time so I introduced her to nursery friend at a dinner party. The dinner party went well and my childhood friend invited her to a garden party today. So we all went. I was looking after the two children. One of my friends relatives was there who has been known to be involved with drugs in the past. Anyway my nursery friend's husband and the drug relative basically started a drug deal! In the garden in front of toddlers! They spoke openly about the price and quality of cocaine. I was shocked and wanted to leave but was looking after the children. adults disappeared upstairs. I made an excuse to leave but couldn't leave immediately as I was watching another friends two children as he was cooking. I made my excuses but my toddler didn't want to leave so I dragged him away, swiftly gathering my belongings. My childhood friend ran after me and asked me what was the matter. So I said nothing that I had a headache etc, she could tell I was angry, but I didn't want to make a scene so I mumbled I had to leave. She shouted at me and swore at me as me and my son were leaving. She has never spoken to me like that in her life before. I don't want my son exposed to drugs full stop, but feel guilty for introducing these people and for being so stupid. I didn't ever expect my childhood friend to do drugs as she used to be very anti. Should I confront my friend or just do nothing and avoid such people?