LATEST: Sir Paul McCartney's estranged wife Heather Mills has laughed off an incident which saw her locked out of the former beatle's London home yesterday (07AUG06). The former model, 38, brought the couple's two-year-old daughter BEATRICE to visit her father, but was dismayed to find the locks had been changed and the former BEATLE, 64, was not at home. Mills' security guard then attempted to scale the wall of the St John's Wood, north London mansion walls, which lead MCCartney's security to call police after believing there was an intruder attempting to break in. Her spokesman, PHIL HALL, says, "She was laughing about it. "One of the security people inside called the police. They turned up and (Mills) went off for a drive around the block with the kid." MCCartney's spokesman refused to comment.