kids can be rough, so a bit of roughness can be quite normal in some children so you would likely come across this in any group that you attend. however, it shouldnt be ignored. i dont think you need to make a big deal about it but as it is happening go and say 'stop *the kids name* we use gentle hands here', so you would tell him what to do and how to behave in your sentence and then something along the lines of *your DDs name* doesnt like it when you do that it hurts her etc. then you can redirect and say ' look here is a ball you can kick' or whatever...

i would then go and just mention it casually to the parent and say something like... did you see so and so just do that to my DD? gee kids can be rough is it an age thing or something? i'm not looking forward to when DD hits that stage.. so what sort of things do you do to handle it etc etc etc.

well thats what i would do anyway. however.. if it is a continued thing and you arent getting ANY assistance from his mum then i would think about leavin.

oh and teach your DD to say 'stop i dont like it' so that she can speak up for herself too and the other mums will hear her and realise something has gone on.