Under the guise of Foursquare "tips", you'll find some pretty incredible one-liners. Incredible as in hardly-credible. The site's silky-smooth short message format compels reviewers, er, "tippers", to cut to the chase. Could it be that it also encourages tomfoolery? There was more willingness to take a dump on Trump Tower than with other top-rated luxury hotels. Anyone surprised? Read these selections, culled from a great many reviews—most positive—and taste the absurdity.