What is the psychological reason for...?

@iAlicia (758)
United States
December 20, 2006 8:30am CST
I'm just curious, those of you who have seen the movie... "The Final Cut" There is a seen where they show Robin Williams as a kid and he is sitting in the bathroom and he picks a scab and then looks into the mirror and eats it. There must be some kind of psychological reasoning behind this. Does anyone know?
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