The wife and I were at the shopping mall today when we passed the vacuum cleaner store. I remembered that I had put our last bag in our vacuum cleaner when I changed it recently.
“We need to get some bags for the vacuum cleaner,” I said.
“Are we out?” my wife asked.
“No, there’s one left, but it’s the one in the machine.” I replied.
“Then we’re out of bags.”
“No, we’re not out. We have one. It just that it’s the one in the machine.”
“That’s the same as being out.”
This reasoning I do not understand.