What the badge should be granted for:
Submitting negative feedback in Bodhi, possibly only after a package has been pushed to stable. The latter would be a negative-specific version of #165.

Alternatively this could be awarded to the person who does the unpush; but I would like to see this made more generally available as that is a rare occurrence.

Badge description (like "You added a co-maintainer to a package. BFF!"):
You submitted negative feedback for an update.
{for the latter}
You submitted negative feedback for an update in Bodhi after it was marked to be pushed to a stable repository.

Anything else we need to know:
The exact definition for this needs to be decided upon before the YAML file can be created.

Possible names:
* Stop That Update!
* Stop The Presses!

For the first, the picture icon could be a chase scene of some type. Ideas for this could include someone trying to run after or rope/catch a sinister-looking person or package.

For the latter, the icon could include some sort of newspaper reference. However this name might be something the documentation team may want to use for a different badge purpose.