Bella worked as her father's carer until he passed away. (TV: Orphan 55)
Abby McPhail was a full-time carer for her mother, which made Craig "cheesed off" with her. (AUDIO: SOS) When she was kidnapped by UNIT for interrogation, she said "this isn't funny", that she was "[her] mother's carer," and that her mother needed her. (AUDIO: Interrogation)