Rocks

This morning I made myself a cup of hot chocolate, the kind with mini marshmallows in it. I heated the water, poured the packet in and didn't have a chance to stir it at that moment. When I set it on the table, Zack looked into it and was concerned.
I asked him what was wrong. He pointed to my cup and said "rocks". He was concerned because he thought there were rocks in my cup. How cute is that?