Customer: Can I ask you for a favor?
Customer: I have a bottle of fish oil that I opened, but I can't go home to refrigerate it, can you keep it here and I can pick it up tomorrow?
Me: Um... are you really going to come get it tomorrow?
Customer: Yes, I can be here when you open. I'm also going to get a lemonade.
Me: Well we can't really hold people's things here.
Customer: Oh are you sure?
Me: Yes, sorry.
Customer: Oh... well I don't really want the lemonade then.