Here's the story.
It seems that salmonella has tainted a very large and widespread batch of Peter Pan peanut butter, and one of those same jars was right in my pantry! Danger! Danger!
(Actually it's kind of exciting. We've had no ill effects from it and I never get to participate in any kind of recall.)
So out it goes. Guess we're lucky that 80% of our household prefers JIF. It was just me that was endangered.
Phew! Dodged that bullet.