Warning, the following may be controversial. I tell it because it works, and my kids are proof.
A unique use for the grill. Just as my munchkins started to crawl, I fired up the Webber Smokey Joe until it was as hot as it would get. I then picked up teh child, and placed his or her little hand in mine, and moved it close enough to the bunrining embers that it was uncomfortable, but not yet dangerous. I then pulled both of our hands away and said firmly, "Hot!"). I repeated the process two more times. None of my children ever reached for anything that could burn them. I simply pointed to whatever could be dangerous and said "HOT!) I never pointed at something that wasn't hot and told them that it was. They knew what hot meant, and stayed away. A moment of discomfort saved them from the possibility of excruciating pain.
I've had my share of burns, some minor, one major. I didn't want my kids to have to go through that. The method worked. It seems that the Barbecues are for more than just cooking food.
Seeeeeya; Chief Longwind of the North