When Buddy was 18 months we took him to feed ducks in Utah one time. He did not understand that the bread was intended for the ducks and not for him. We all got a good laugh at the time and we still bring that up from time to time. Well low and behold, at age 8 he still didn't understand. He'd toss a piece to the ducks, and take a bite for himself. And he begged and begged for me to save the last piece of bread for him. Even though I had fed him a snack (anticipating this) five minutes before we started feeding the ducks.
This is Buddy feeding the ducks at age 8.
This is Buddy feeding the ducks at 18 months.