This discussion reminds me of an absolutely true story.

Two friends of mine were in the middle of a dramatic divorce.  She was in a 
wheelchair, and he was blind.  he was running around putting stuff up where 
she couldn't reach it, and she was crawling around hiding stuff where he 
couldn't find it.  The biggest fight they had separating their stuff, was 
the scale.  She couldn't stand on it without his help, and he couldn't read 
it with out her help.  They fought over trying to stick the other person 
with the scale.

I asked her a couple of years later, why she kept his last name?  She said 
"because that's all of that son-of-a-bitches that I could keep"!!!