Goldie locks and his three chairs

So, Dylan pretty much burns his calories as he eats them. During meal time I sit him in his booster seat, usually try to just put a small portion of food on his tray, he picks at it a bit, then starts to throw it, I scold him, remove the tray and release him. He then climbs into Sophia's chair (she has vacated it long before his take over) and get all proud and insists on bites from there. Then he climbs from her chair to mine and leans over my back for another bite. Then he climbs down and back onto Sophia's chair... And so on and so on.