PAUL vs HEATHER

Heather Mills has gone off the deep end, and Paul McCartney is concerned for the well-being of their daughter, Bea.

Following Heather's ridiculous rants all over TV, Sir Paul is planning to seek full custody of four-year-old Bea.

Mills herself stated that she's received death threats.

Says a friend of McCartney's, "If Heather's life is at risk, then so is Bea's. Paul feels he just can't take the risk any more and wants to know that his daughter is safe and well-and that means being with him. Paul did plead with Heather to consider Bea before she went on these TV shows, but she ignored him."

Mills also said she's contemplated suicide.

We don't think she's in a very stable place right now. Being with daddy will be good for Bea.