An engineer, an experimental physicist, a theoretical physicist, and a philosopher were hiking through the hills of Scotland.
Cresting the top of one hill, they see, on top of the next, a black sheep.
The engineer says: "What do you know, the sheep in Scotland are black."
"Well, *some* of the sheep in Scotland are black," replies the experimental physicist.
The theoretical physicist considers this for a moment and says "Well, at least one of the sheep in Scotland is black."
"Well," the philosopher responds, "on one side, anyway."
Cresting the top of one hill, they see, on top of the next, a black sheep.
The engineer says: "What do you know, the sheep in Scotland are black."
"Well, *some* of the sheep in Scotland are black," replies the experimental physicist.
The theoretical physicist considers this for a moment and says "Well, at least one of the sheep in Scotland is black."
"Well," the philosopher responds, "on one side, anyway."