So my almost 8 month old son is crawling pretty fast now and climbing on everything. I thought I would get like the Rugrats style playpen so I can put him in when cleaning the house or just need a minute to sit (I'm chasing after him pretty much all day long). So I bought it and put him in it and he stands up and starts crawling up it like a fence!! Thank God I was right there or it could have ended really bad. There's no way I can put him in it. He can crawl up it and fall and crack his skull. I'm so frustrated. Is this normal and Is there anything I can do besides follow him around or put him in his crib?