I was in the park today, watching my granddaughter riding her bike and walked around the path and ended up close to an SUV. There were four children inside (about 10 yrs old) and they started saying 'old woman, old woman' and laughing. After a few minutes I went up to the car and said 'You are being rude , I will tell your mum when she comes back'. Mum arrived, said 'What the fuck are you doing near my car?' I said they were rude, she said they are just kids, I told her what they were saying, mum said she would knock me out if I didn't fuck off. I said they were all scum. Fortunately it didn't escalate. My friend has said I should have ignored the kids- should I have? Or was I right to tell them they were rude?