My twins (17 mos) have learned how to pull out our dining room chairs and crawl onto their booster seats. If they just sat down and waited patiently for their foods, (HA!), it would be easy, but my two prefer to goof around/stand/try to turn around. I watch them vigilantly and do my best to redirect or ask them to sit on their bottoms. Unfortunately, there are definitely times where I have my back turned, (like when I'm strapping in the other twin!). Today, DS climbed up and -- as I dashed over to get him -- he fell backward onto his head. He's fine, but...yeah.
Any ideas for what to do? Do you a high chair or booster chair that you think would help prevent this? Help!