First Cape

Before bed tonight, Owen was helping me put his clothes into the hamper. He put them in, took them out, arranged them on the floor, back in, back out... while I got some other things ready for the night. He took his long sleeve shirt out and lifted it up and over his head - at first I thought he was trying to put it on, but then I realized that he was trying to wrap it around his shoulders. He kept trying and when he got it, he laughed and tore across the room and back, where it fell off. He must have put it back on 4 or 5 times, then would run across the room - is being a superhero inherent in boys or has he been watching Superman with Todd when I'm at work?