Highchair Manners?

Gone are the days when Dovid was content to just grab the spoon from my hand and play tug-o-war with it. Now he has to 'help'... Splat! He grabs the food from the bowl... Splat! He grabs the bowl of food. Splat! Splat! Splat! He throws the bowl on the floor. Squish! He mushes it... Squish! Squish! He shares it... with his hair, with the floor... but most of it ends up down his legs.