NAK

One of my pet peeves is NAK systems "Negative AcKnowledgement" systems. Whenever I try to create a system or a policy, I like to use PAK "Positive AcKnowledgement"

Some examples of NAK systems that exist in real life:

For developers only:

OK, now here is a funny joke: If you don't understand it, read everything above, then read the line below out loud.

Do you have the NAK? Did you get the NAK?