Went to the park this aftrenoon with my 15mo DD. It didn't start well and quickly went down hill.
Firstly, there were two group of DC's - one group about 11y, one group about 13y - having a slanging match - shouting gems like 'You're mum's so fat when she fell down the stairs the house shook' and 'Shut up slut' at each other. I said nothing and was pleased when they went their seperate ways after about 5 mins.
Then a group of 3 girls, about 13y, arrived and started having a VERY loud discussion about 'bum sex' - apparently George wanted it with one of them and had touched her arse so it was almost a done deal 
I was shocked and really saddened to hear this coming from such young girls. I say this as someone who was no angel but the things they were saying were so adult.
I decided to leave and on my way past i felt I should speak to them about their behaviour. I said 'Excuse me girls, sorry to intrude, but if you are old enought to discuss anal sex you should know it's inappropraite to discuss it in the park in front of a 15 month old child'. They all apologised immediately and I said that if I wasn't with DD our conversation would be going very differently but I was now leaving and they had spoilt our trip to the park.
When I got home I was on the verge of tears and shakey. Think a lot of you will say I am overreacting AIBU to be so shocked and so very sad for these girls?