Here's some whoppers I've heard over the years:
We're doing everything we can to increase technician hours.
We're working hard to get pharmacists a lunch break.
Our number one goal is patient safety.
We appreciate your hard work.
You're being considered for [new position] (when they've already chosen someone)
We need you to fill in at store XXXX, but just until we can get someone to replace you.
And the grand daddy of them all:
You're important to us!