If I had a choice, I don't know if I'd prefer the straight out knocking each other's lights out or the psychological crap from girls.
Bob, Erin has her own loofa. She's had one since she was 2. It is hers and you should not use hers. You have to get your own.
She's taken to "shaving" my legs lately. She LOVES daddy's shaving cream and is quite put out that he took it with him. She got very excited when she saw women's shaving cream on a commercial on TV and is after me to get some.
Oh, and don't use her washcloth or towel either.