It’s okay to be over-protective about certain things. I don’t feel comfortable sharing my books with anyone, I get over-possessive about them if someone asks me about borrowing them. My friend is too sensitive about her makeup. And whenever she leaves home she locks the room and keeps the key with her so that no one can touch her makeup.
Some people, however, take over-possessiveness to a different level. They get so crazy with the fear of there prized possessions being stolen that they go to extreme levels. Like these people..