"They"re Not Pets, Susan," says a stern father who has just shot a bumblebee, its wings sparkling in the evening sunlight. A lone office worker, less than an inch high, looks out over the river in his lunch break, "Dreaming of Packing it All In." A tiny man makes his way back to a tiny car, with a tiny shopping bag: "Shopping for one again." Another office worker sits atop a gigantic engagement ring and gazes into the distance; the caption reads, simply: "No." These are the collected photographs of Slinkachu, a London-based artist who for several years has been placing tiny hand painted people on street corners, park benches, and the Underground, and leaving them to fend for themselves. Much like Banksy’s early graffiti work, Slinkachu’s creations mix the bustle, humor, and melancholy of city life, and lie quietly in the darker corners of London’s streets, waiting to be discovered. And if you’re lucky enough to find one, to quote The Times: "Oddly enough, even when you know they are...