In "Us and Them" off Dark Side of the Moon, Pink Floyd's David Gilmour sings, "Who knows which is which and who is who?" And for employees at a St. Cloud, Minnesota hospital, this question became quite pertinent when a Monticello man claiming to be the Floyd singer-guitarist checked in and ran up charges as much as $100,000 in April.

Police say the 53-year-old man, from Monticello, Minn., went to St. Cloud Hospital for treatment April 20. He claimed he was Pink Floyd singer-guitarist David Gilmour, and that he didn't have health insurance. He was treated and released - but not before signing an autograph.