Shillin' for Trillin

Calvin Trillin's latest offering over at the Nation:

When shells fall close and smoke is thick,
Real tough guys never run. They stick.
Or so says Five Deferments Dick.

No wavering---no he's a brick.
To cut and run would make him sick.
Or so says Five Deferments Dick.

Appeasers cannot take a lick,
But tough guys bite and gouge and kick.
Or so says Five Deferments Dick.