My friend came up with this challenge, and decided that I should try and see if I can be helpful and wash dishes in the back of a restaurant. We headed to the downtown area where we live. I went in and immediately asked the lady working the cashier. She asked if we were part of a scavenger hunt, which is a good idea! We told her that we weren't. She gave us a very rehearsed no wrapped up with a thank you for offering.
It made me realize that they must get asked this question a lot during scavenger hunt! It was the same issue as laws with food regulations. But I appreciated how kind she was when giving us the big fat no!