Jackson, WY – Teton county authorities are investigating some suspicious activities in light of the recent dog poisonings in western Wyoming and eastern Idaho. Bridger-Teton National Forest spokesman Jay Anderson says two forest volunteers encountered a man coming out of a wooded area near the popular Cache Creek trailhead Tuesday morning. He says the man was wearing industrial-type rubber gloves and carrying a Mountain Dew bottle with a brown liquid in it. Anderson says the man acted very surprised when he saw the two Forest Service volunteers, in Anderson's words, "like a deer in headlights." He says forest officials urge dog walkers to keep their animals on a leash and be aware of what their dog might come across.