Drat, the Lat!

In Latvia, the unit of currency is called the lat. 

If you live there,
you'd better beware,
of saying the lat is ker-splat.

You really don't want to that:

Hammered by economic woe, this former Soviet republic recently took a novel step to contain the crisis. Its counterespionage agency busted an economist for being too downbeat.

The spies keep their eyes 
on all who despise 
the so-meritorious
surely victorious
sheer flat-out glorious
lat!