I was lighting a chimney of lump on my smoker and it lit a bag of wood chunks on fire that was about 4 feet away from the sparks.
The smell of KBB lighting up is less than pleasant compared to lump. Almost acrid. You never light up ALL the briquettes in a smoker at once, and regardless of what Meathead Goldwyns biased opinion is, I choose lump. I like it better.
the only thing I have ever found in my lump bags is rocks.