I'm always fascinated with people are presented with a free lunch- they are usually surprisingly picky. And the more expensive the free lunch, they pickier.
"What? No arugula is the greens? Who ordered this? And where's the organic balsamic basil infused vinegar to go with the oil?" That sort of thing.
These moments are very revealing to me- generally the folks who complain about a free lunch are those I don't like spending time with. Double that if I have to work with them.
Bitching about a free lunch can be very costly.