At a young age my brother mastered the art of playing by himself. As he would any other day, he was in a room playing fighting against his powerful enemy with weapons he made out of cardboard boxes. Thinking he might want a company, I went to see how he was doing and found him like so.
Sometimes his imaginary enemies are a lot stronger than he can handle.
(But don't worry, in the end he won by throwing the Holy Mackerel at his enemy.)