In the shortest, and oversimplified-est (that's a word, right?), terms possible:
- Car salesman making fun of a sales event with his co-workers because the food was so crappy it could impact their sales and commissions (i.e. terms and conditions of employment) . . . protected concerted activity.
- Car salesman alone making fun of some idiot who drove a Land Rover into a pond because it's funny when people drive cars into ponds . . . not protected activity. Employer cleared to terminate.
- "Courtesy" rule that prohibits "disrespectful" conduct and "language which injures the image or reputation of the Dealership" . . . unlawful as overly broad.