...One that Paul McCartney claims his ongoing divorce has taught him. He was asked in an interview what he had learned in 2007, and he responded sarcastically "Algebra? B Minor?" but then acknowledged that the low point has been the divorce and said patience was required to deal with the rigmarole.

It's had an effect on his music as well, though don't expect any vitriolic rants about evil one-legged devil women on his new album. He says that his tunes have become more optimistic in order to counter the negativity, and that "I'm not so good at angst-ridden songs. My natural optimism tends to take over."

Given the year he's had and the constant stream of negativity coming from Heather Mills' corner, it's remarkable that he doesn't let loose on her. She's wasting no time on niceties with him or his new squeeze, however. Mills was apparently furious after learning that Paul introduced their daughter Beatrice to his girlfriend, Rosanna Arquette, and reportedly called her a Z-lister.

Of course, that didn't stop her from asking Paul to have Christmas together as a family, but he declined. Apparently Mills' recent attacks on him in the press have him a bit gunshy about having her around for the festive day, and he is afraid she'll make a scene. He will have their daughter on Christmas day, however, so Mills will be left to celebrate with the person she loves best, herself! Perhaps her publicist as well...