Do not count yourself short, boy. You are headed in the right direction right away. Very warm, and not just from the stove. The first burner you try seems normal. Little flames lick upward, and you move on to the next one after turning it off. The same happens. And to the third, too. The fourth, though, has a slightly different color to it, as if it were painted or glazed over, and nothing happens when you turn it on. It also isn’t nearly as tightly in the stove as the others.

What could this mean?

Give it another twist, maybe?

But then - flames larger than the other knobs produced suddenly fire upward. Nothing burns, and they quickly calm down, but nonetheless, this is not normal. Did it singe your eyebrows off?! It certainly came close enough!