My son likes to scream. Not cry. Scream. He once noticed that whenever he made a noise in his parents' room, that the baby monitor in his room would pick up the sound and the monitor in our room would light up. He likes it when things light up. A lot. Now he thinks that whenever he screams, things should light up. So he spends his mornings screaming.
I am only home in the mornings a few days a week and think it is cute, especially when he screams and plays his piano at the same time. (I think he's going to be the next Buddy Holly.) His mother thought it was cute, but now turns on the very loud dishwasher to drown out his screams. Ominous, I know.