BLOOMINGTON, Ind. (AP) - A diner found a piece of human flesh on his hamburger shortly after a restaurant worker accidentally cut his finger, and a spokeswoman said the company was ``very, very sorry.'' A kitchen manager at the TGI Friday's at College Mall injured himself Tuesday and no one immediately realized he had lost part of his finger while others rushed to help him, said Amy Freshwater, a spokeswoman for the chain.