She really is a nut! We are going abroad this year and are sorting out our passports (what a nightmare they are!!) Well anyway because its our first passports me and DH need our parents full names, DOB, place of birth, and passport numbers. He phones up his mother and she refuses to give it to him, because she is on Incapity benifit and went abroad for 1 week in 2000 and didn;t tell the benifits office, and she thinks that she will get done and lose her benifits FFS!!! 
She did eventually give us the number....... but AARRGGGHHHHHHH!!!!!