OSAKA -- A woman was seriously wounded when she was stabbed by an unidentified man on a street in Fujiidera, Osaka Prefecture, early Tuesday after refusing to look at his naked bottom, police said.The assailant, after dropping his pants, approached the 21-year-old female restaurant worker on the street and said, "I will give you 10,000 yen if you look at me." The woman ignored him, but he followed her on his bicycle, police said.When she threatened to notify police, he knocked her down and slashed her knees with a knife. The man appeared to be in his early 20s and was about 160 cm tall, police said.