The thin end of the wedge is sharp
and you will cut your foot on it,
the moment you stop paying attention
and snag on the cruel point of it.

The thin end of the wedge is sneaky
and will catch you by surprise,
the way it tapers from empty space
is deceptive to untrained eyes.

The thin end of the wedge is mean,
and before you know it, you’re jammed;
you’ve reached the fat end of the wedge,
and your forward progress dammed.