Chase graduated from the high chair to the booster seat a couple weeks ago. Actually, Houdini here uses his super bendy joint power to magically escape the buckle and the tray pushed into the tightest position in order to crawl out of the high chair and sit on top of the table.
Imagine my surprise when I looked up from across the room and saw him nonchalantly kneeling on the table, pleased with himself for finding a way to get at the crackers I had left just out of his reach.
So, now he sits at the table, in a booster, with a very very tight seatbelt. And I think he likes it better that way :)