Any tips for stopping my 4 year old DS terrorising his 20 mth old brother? Last few months he is constantly pushing, shoving, tripping him up, poking his face etc. Am always asking and telling him to stop but he just ignores me or does it more snidely. After several warnings I send him to the stand and think corner but doesn't seem that effective - shortly afterwards he's doing it again. He very rarely plays nicely with his brother, and I seem to have resorted to spending most of the day yelling at him which I hate and is really not me.
I know that brothers will fight but this seems more like bullying to me, and my younger DS doesn't ever retaliate, he just starts crying.
Any ideas anyone?