The Marauders: Trial and Error

James' mouth opened, closed, opened again. "Um. Can babies have butterbeer?" / His wife narrowed her eyes, brow furrowed in confusion. "What?" / James stepped back from Harry's high chair, a cup of butterbeer in his hand and a bottle in the other. "I think he drank my butterbeer." / Trial and error, right? That's how you learn?