Once total strangers, two men now feel more like brothers all because of a shirt. Robert Leibowitz, who works in advertising, has been suffering from chronic kidney failure. The father of five feared he might not survive waiting for a kidney donor. The ad man came up with a desperate idea. He made up a shirt that read "In Need Of A Kidney. O Positive,” and wore it on a family vacation to Disney World. A couple saw it, took a photo, and then posted it on social media.