I was paying at the till this morning while a little boy about 3 -4 yrs old was continuously climbing & jumping off the bag packing shelf. He jumped off and landed on his back. I was very alarmed and turned to his mum and said very nicely 'your little boy is going to hurt himself jumping off there', OMG if I did she called me everything, she even said 'well he will learn then won't he when he hurts himself?' I said 'that is not the point you are his mother and supposed to be looking after him'. She said 'what is it to do with you anyway?' . I said 'it's to do with everybody because it is a child at risk of hurting himself'. It was worse than that but I won't go on , I had no one supporting me in there and no one else said anything they just put their heads down and carried on as if it wasn't happening. I just feel like what is the point in getting involved. I will just stfu in future. The shop assistant didn't say anything either ......what is the matter with people?