This morning I had fixed a glass of ice water and placed it on the kitchen counter where I was preparing to use my computer. Kate came in and put ice in a glass and put it on the island. She also brought in an empty glass and put it on the counter next to the sink. In a few minutes she pointed to my glass and asked if it were hers. I told her it wasn’t, that hers was on the island. Then I said (pointing to the empty glass on the counter next to the sink), “That one is yours too. We both laughed, and she gave me a hug. We both knew that I was joking about her memory in that she had put 2 glasses in the kitchen including one to which she had added ice but had forgotten. All this occurred in a matter of minutes. I then said, “That was mean. I shouldn’t have said that.” She wasn’t at all troubled and said something about liking my humor.