UFC women's bantamweight champion Ronda Rousey details her first trip to the emergency room, which occurred after she got a Raisinet stuck up her nose. (1:47)

UFC star Ronda Rousey may be one of the best-known female athletes around, but there are a lot of things you don't know about the women's bantamweight champion. As her sister/biographer, I feel like I should share a few of those things.

Ronda Rousey has only ever dated guys named "Bob."

Our mom, AnnMaria De Mars, who also happens to be the 1984 world judo champion, has a policy of calling all of our boyfriends and even potential boyfriends by the name "Bob." Her reasoning: "What's the point in learning his name if he's not going to be sticking around?"

She also assigns completely arbitrary numbers to each Bob to differentiate one from another. For example, Ronda's last boyfriend was "Bob 6." And yes, she calls them that to their faces.

So how does a boyfriend move from Bob to his actual name? The only way that happens is upon marrying into the family. So yes, by this standard, Ronda has dated only guys named Bob. (Well, except for Ronda's first boyfriend, but Mom's name for him is not suitable for print.)