I haven't ever been burnt myself but I watch very carefully when my child is around the campfire.
The 5 year old son of a good friend wound up with third degree burns on the bottom of his foot. He ran out of the tent when he was supposed to be sleeping and didn't stop in time. So, I'm always on the alert when kids are around and I take precautions with myself.
However; no matter how hard I try to move around the campfire and avoid it, when I'm cooking, I always seem to inhale too much smoke.
Still, an open fire is worth it to me.