My 3year old son is mostly fine with his baby sister (10months) hanging around, and has even smiled at her now and then, as long as I keep her from grabbing his toys or crawling all over him. But yesterday, as she crawled up to him and started chattering away to him, just happy to see her brother, he kicked her in the face. It was kind of a light kick, and she didn't cry, was just shocked, but it was really upsetting to me. I told my son to be nice to his sister, and to be careful and all that… read more