Negative Double Puns

He said, “I know, I know, I know, I know, I know, I know, I know, I know, I know...”

You’ll get tied up in nots.

They are a big No. No.

That's a no-no

The double negative is a complete no no!

In my computer science course, my very old professor busts this out during a discussion of logic:

"I went to a logic conference once, and the lecturer said, 'it's interesting that a double negative gives you a positive, isn't it? I mean, a double positive doesn't give you a negative.'

Someone from the back of the room scoffed and went, 'yeah, yeah.'"

Half the class chuckled, half the class groaned.

Double negatives are a real no-no.

It’s a no no.