Greg(E.Tn)
Well-known member
I learned the difference between Flammable and Combustible the hard way. 
It could have been much, much worse, however........
My former wife and I burnt our paper and cardboard garbage back in the day--my favorite flammable propellant for doing so was Charcoal Starter, falls in the FLAMMABLE category, which I knew at the time.
So one day I was burning a big pile of cardboard, went to get the charcoal starter, and found to my dismay that only about a tenth was left in the bottle. So, I doused the pile as best as I could with what I had, and went back into the basement, looking for something else which was FLAMMABLE.
I came back out with a gallon can of what we know as Coleman Camp Stove fuel, which issssssssssssssssss………...
COMBUSTIBLE.
I figured I was pretty safe using it, as only a quarter can was left.
So, I added that to the pile, and waited a bit, because something in the back of my mind was sending little warning signals about FUMES. I stepped back about three or four feet, and waited for a couple of minutes, at which time our Catahoula Cur dog named "Jeb" ambled down to see what was going on.
So, I lit the fire, and fortunately turned my head away at the last time, because the fire went "Whoomp!" A big fireball went up in the air, and I didn't see Jeb again for about three hours.
The wifey stepped out onto the porch and said, "What was that noise?" I said, "I didn't hear anything."
She replied, "It sounded like a car door slamming," then turned back to whatever she was doing.
So, anyway, that's how I learned the difference between Flammable and Combustible.

It could have been much, much worse, however........
My former wife and I burnt our paper and cardboard garbage back in the day--my favorite flammable propellant for doing so was Charcoal Starter, falls in the FLAMMABLE category, which I knew at the time.
So one day I was burning a big pile of cardboard, went to get the charcoal starter, and found to my dismay that only about a tenth was left in the bottle. So, I doused the pile as best as I could with what I had, and went back into the basement, looking for something else which was FLAMMABLE.
I came back out with a gallon can of what we know as Coleman Camp Stove fuel, which issssssssssssssssss………...
COMBUSTIBLE.

I figured I was pretty safe using it, as only a quarter can was left.

So, I added that to the pile, and waited a bit, because something in the back of my mind was sending little warning signals about FUMES. I stepped back about three or four feet, and waited for a couple of minutes, at which time our Catahoula Cur dog named "Jeb" ambled down to see what was going on.
So, I lit the fire, and fortunately turned my head away at the last time, because the fire went "Whoomp!" A big fireball went up in the air, and I didn't see Jeb again for about three hours.
The wifey stepped out onto the porch and said, "What was that noise?" I said, "I didn't hear anything."
She replied, "It sounded like a car door slamming," then turned back to whatever she was doing.
So, anyway, that's how I learned the difference between Flammable and Combustible.