bash.org archive

<Malagmyr> This linguistics professor was lecturing the class.
<Malagmyr> "In English," he explained, "a double negative
forms a positive. In some languages, such as Russian, a double
negative is still a negative."
<Malagmyr> "However," the professor continued, "there is no
language wherein a double positive can form a negative."
<Malagmyr> Immediately, a voice from the back of the room
piped up: "Yeah..... right...."