Da Vinci de-coded

This one is for all those who have seen or read "The Da Vinci Code". I'm in a serious dilemma. I'm beginning to believe my dad is the member of a secret society - The Priory of Sion. I have reasons - in fact 5 of them.

1) The grills of our windows are diamond-shaped, signifying the union of the blade and chalice (the male and the female)

2) My dad attends some sort of meetings every month. He says it is a social welfare general body meeting, but I think otherwise

3) There are plenty of keys in our house, fallen all over the place, and I have no idea which locks they open. Perhaps, some secret lock hidden underground in an ancient church

4) My dad's cupboard is a mess, with loose sheets fallen all over. He refuses to clean them up, and he's angry when I misplace them. Perhaps they are records dating back to the birth of Jesus Christ

5) My dad always sets me on a treasure hunt whenever he loses his spectacles. Perhaps he wants me unclassify Da Vinci's code, and he's giving me the necessary training already.

And this is for all those of you who think I'm totally weird ... I just watched the movie yesterday, so I have begun looking at everyone as possible secret membes of the Priory of Sion. Are you a secret member too ??