Lesson: be nice, everybody. The internet is watching.

One nice store manager, a simple wall post, 500,000+ likes and 22,000+ comments. Not bad, Panera. Not bad.

Panera wins.

This most recent Facebook case study warms even a cynic’s heart.

Here’s the full story. (Basically, dying Grandma wanted clam chowder and Panera rose to the occasion, earning the good will of The Entire Internet.)