My father and brother's theory...

While we were eating some snacks earlier I told my dad that I was going to have my hair cut either today or tomorrow...my brother who heard the conversation suddenly said "sabi sayo tama ang theory natin eh"...feeling left out of the loop, I asked them "what theory" and they kept on laughing and laughing...then I went to my sister and asked her about the theory...she said nothing haha...so what is the theory? Can some of you guess with me? haha

I think it has something to do with this...

From this (July 2008)















to this (Aug 29, 2008):















So what is your theory? haha