I need to post this in case we forget. Sam's Aunt Terri promised him when he was pottied trained she would take him to the zoo to ride a camel. She kept good on her promise. This was probably about a month or so ago. But last week Sam told me: "I think Aunt Terri and Aaron are still at the zoo".
They were actually on vacation. He has such a great memory, just needs to work on the concept of time.