TOKYO (Reuters) - A would-be Japanese bank robber asked staff how he should carry out the crime before meekly obeying a request to leave and then accidentally stabbing himself in the leg with a knife he was carrying. The 58-year-old unemployed man went into a branch of the Saitama Resona Bank in the town of Kumagaya, north of Tokyo, on Wednesday, intending to rob it, a police spokesman said. According to local media reports the man first asked a bank teller, "Any idea how you rob a bank?" The teller alerted another member of staff, who asked the man to...