Bubbles in the Bathtub

I had just finished feeding my six month old son a tasty meal of rice cereal and strained peas. He was refusing more, but continued to cry. My wife and I were puzzling over what the problem could be. What were we missing? He's usually pretty pleased right after eating. Why the heck was he still crying? (imagine the serious of back-and-forth of two concerned parents)

My three-year old daughter, who was playing with magnets on the fridge, said simply, "He's aggravated", and went right on playing.

I haven't laughed so hard in a long time...