Jim if you will click on Mrs Duck's clickie above you will see that very sign! One that we see quite often around here due to much construction is:

ROAD WORK NEXT 5 MILES

I always have to wonder if that means the road doesn't work after that five miles?

then there's always the one:

SLOW MEN WORKING

Seems the work would get done a lot faster if they got some fast men to do the job, but then for what they probably get paid, I wouldn't work fast either!