(部隊成員的槍因為攻擊灰熊而損壞，所以他只好在樹上等待灰熊離開。

出處: "An American having struck a bear but not killed him, escapes into a tree." in Patrick Gass, A Journal of the Voyages and Travels of a Corps of Discovery, Under the Command of Capt. Lewis and Capt. Clarke. . . . Philadelphia: Matthew Carey, 1812. Prints and Photographs Division of the Library of Congress.