A linguistics professor was lecturing the class.
‘In English,’ he explained, ‘a double negative forms a positive. In some languages, such as Russian, a double negative is still a negative.’
‘However,’ the professor continued, ‘there is no language wherein a double positive can form a negative.’
Immediately a voice from the back of the room piped up: ‘Yeah… right….’
You know you like it. I found it on LinkedIn.