Last night I put the boys to bed as usual, with C on the bottom bunk and D on the top. I came back in their room an hour later when I heard them banging around in there instead of sleeping, and found C on the top bunk. I stuck my head in and said “Go to sleep!” and C responded “I’m D!”
I said, “No you’re not, go to sleep C.”
This morning when they got up, I realized they had switched shirts last night as part of their attempted deception. They cackled happily when I said “Did you guys switch shirts?” and were rather impressed that I hadn’t been fooled. “How did you know I was C?” he asked. I told him Mommy can always tell them apart. “You can’t fool me. But don’t do that to your teachers.”