有時候，部隊成員會從遠方射擊灰熊；而某些時候，他們只能趕快逃跑。

出處: "Captain Clark and his men shooting bears." 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. Reproduction Number: LC-USZ62-19233