You ask your husband to talk to his sister about the baby. Maybe parents can't educate their children at all. Your husband, as a brother, can give a warning, but it's best not to mention it when the child hits you, or his sister will think that you are picky about the child. Next time a child hits your husband, let him talk.

Don't children go to kindergarten? How can any child want to play with him at this rate? There are some family reasons for this kind of child's bad temper. He may be imitating. Try to guide him. Let him correct it and tell him what mobile phones and toys are for. Let him watch more early education software. There is an animated film called Legend of the Dragon Knight, which is quite good. Teach children a lot of manners. It's best not to watch Happy Meal and Big Big Wolf, both of which are forbidden. Let him watch less violent cartoons and movies.

If children often hurt other children, hurt small animals, or can't calm down within a few minutes, it is necessary to see a pediatrician.

You just stay away from that child, after all, it's not your own child.