(F)īre
(F)ire!
⠀ those angry flames—
⠀⠀⠀ hot(ness)
⠀⠀⠀ burning.
One does not think of such vile things, (tetrameter)
but he(at) is difficult,
hard to avoid. (pentameter?)
Sometimes, the pentameter sounds right, but there is something not quite right. Note the elongation of difficult and a slight unnatural emphasis with hard. But—it can still be classed as iambic pentameter. Perhaps amphibrach, anapest, iamb, iamb. The fun is in how you say it! Thankyou Robert!