Seen in the parking lot of a brand new department store, painted on the ground at a crosswalk in letters 4 feet tall: YELD
Close, but not close enough. The next week I drove through the same parking lot and found it was changed. They had painted an I between the existing letters. Now it read YEILD.
About two months later they finally fixed it. The old lettering was painted over with black and freshly painted on top of that was the word STOP.