Recently, I have at a mid-low end restaurant ($7-10 per dish). Beside ordering off of the menu, the customers at the next table handed over a bag of cherries (they bought from a nearby market) to the waitress and asked if she can wash the cherries and bring them back for serving. The waitress did just that.
The customer was nice about and the waitress was nice about it too. So no harm done. My question is that: Is this considered a out-of-bound request and if you think the waitress has the right to refuse? What do you think?