An MIT linguistics professor was lecturing his class the other day.
"In English," he said, "a double negative forms a positive. However, in some languages, such as Russian, a double negative remains a negative. But there isn't a single language, not one, in which a double positive can express a negative."
A voice from the back of the room said, "Yeah, right."
An owner of a peanut package factory walks in to find a dead body and calls the cops.
The owner nervously watches as the cops arrive, they walk in, stand around the body and whisper quietly. One of the cops points out a small bracelet on the man’s wrist and the other cop nods in agreement. The cops begin to leave when the owner speaks up.
“It’s nothing, just an allergy. This happens all the time,” the first cop says.
“But someone died,” the owner replies.
The second cop retorts “Yeah, it’s just another nut case.”