I definitely do not condone fighting back at such a young age . My advice would be to not let him play with her . I ' d go so far as to make it obvious I ' m kind of a bitch and when he goes near her to pick him up and move him and tell him he cannot play with her because she physically harms him . Maybe they ' ll get the message then . I ' d also step in and reprimand the child myself this is only because this is something we do in my family and tell her not to do it and that if she keeps doing it she can no longer play with your LO . Tbh this is probably mostly horrible advice in this sub . So take it with a grain of salt . <| sep |> Pretty interesting read , I never realised that controllers had negative acceleration . The thing I don ' t understand now is how this even ended up on the mouse controls for the PC version of DH 2 .