ST. PAUL, Minn. — A Minnesota dentist who has become the target of worldwide outrage for hunting and killing a protected lion in Zimbabwe advised patients Wednesday to seek care elsewhere and said he rarely discussed his big-game hunting because it can be a "divisive and emotionally charged topic." Walter James Palmer remained secluded in the face of protests at his suburban Minneapolis clinic and intense condemnation online. He has not appeared in public since being identified Tuesday as a party to the lion's death.