i used to work with one athiest girl at the mall a few years ago who was getting her stereotypes mixed up and she told me that Christians weren't allowed to wear spaghetti strap shirts so i just asked her, 'since when?' and she got a really confused look on her face and said, 'well maybe its the Mormon girls who aren't allowed. i get all you guys mixed up!' so she ran to the next store over to ask a Mormon girl we knew there if she was allowed to wear spaghetti strap shirts but i think that ended up confusing her more because that girl was a lapsed Mormon and wore whatever the heck she wanted regardless of whether it had her church's approval
