Your dad is freaking crazy lol! I've very possessive of my things as well. I won't even leave my shampoo in the bathroom because i don't want anyone to use it and don't even get me started on my makeup. Every morning my sil will ask if she can use a certain eye shadow and i already know its gonna come back with some dirt on it and smashed like hell becuase she uses sponge applicators and thinks more is better.