A little side trip again away from reuse. I was visiting with my sibs in Florida and was picking up a bar tab (since I am typically the major contributor to the total). The waitress delivered me two credit card tickets, one labeled "Mine" and the other labeled "Yours."
So which one do I keep and which one do I give back to her?
Had she handed them to me and said "This one is mine and this one is yours," I would have given her the one about which she had said "This one is mine." But because it was in writing, I was inclined to keep the one that said "Mine." I guess because as I read it, the voice in my head was my voice and I identified "Mine" with me. But the "Yours" didn't work in that scenario since I wasn't talking to anyone other than myself. I think I kept "Yours" and gave her "Mine" not feeling any too comfortable that I had gotten it right.
But boy, what a lot of thinking just to figure out which to give back of two documents that would have been the same except for the label that tried to differentiate them.
Why not "Customer" and "Merchant"? like most do? That is not ambiguous.
Or even "Give us one and keep the other."
Or don't label either. Then if I asked which one she wanted she could say, "The one with the big tip on it."