This New York City street sign just sounds so desperate to me. I think it has to do with the lack of periods. Both the initial sentence, and the final “Please” drag on and on without periods to formally end them. Also, the “Please” is in slightly smaller type, which makes it even more pathetic. I wonder if that makes the sign any more successful in its goal of changing dog-walkers’ behavior (at the expense of grammatical correctness).

Hey… Is that a dis? I presume by the distressed typewriter lettering that you found her lurking in the underground forums of IRC or posting risque personals on Craigslist, not perusing the respectful recipes at Epicurious or emailing her elected representatives. Who are you, anyway?