Three Marines are walking down the sidewalk and see a large pile of brown matter.
One scoops some of it up in his hand and says, "It feels like poop."
The other picks some up, puts it in his mouth, and says, "It tastes like poop, too."
The last marine picks some up and sniffs saying, "It smells like poop, as well."
The trio walks away, happy that none of them stepped in it.