Karen is trying very hard to get an answer from train conductor.
“Sir, what is the least safest wagon on this train?”
“All of our wagons are safe.” He responds.
“No sir, one must be worst than the others. What is the Least safest wagon on this train?”
“Again, I couldn’t really tell you, all of the wagons are very safe” he responds impatiently.
“You don’t understand, I have a fear of trains, I demand to know which wagon is the least safe so I could avoid it”
“I see, well if I had to guess, I would say the last wagon is the least safest” he responds with conviction.
Karen thinks for few seconds, “So if the last wagon is the least safe. Why do you attach it?”