Once, many years ago, when I was working in a junk-mail mill, I got some joy out of a simple sign just about a mile away from the site of this employment. The sign, on a smallish road, warned drivers that racoons and other small critters were crossing thereabouts, so it would be wise to proceed with caution. Or, at least, that is what I imagine was the point of posting the sign. It said simply, "Slow animals crossing". I found it joyful because I would always say to myself while passing, "Gee, I guess the smarter animals cross a little further down the road." I guess we're supposed to imagine a punctuation point after the word "slow" to foreclose such an interpretation.