feel like a spare part

Bullen insisted on having a line as when he visited the set of The Perfect Match he "felt like a spare part".

Mickey decides to stay behind on this world to battle the Cybermen-emotionless cyborgs which seek to convert humans to their ranks-as he no longer wants to feel like a spare part.

Last week, the retired power dealer felt like a spare part - without Kelly, he doesn't have much of a purpose and it felt like he was being kept around more for familiarity's sake than anything else.

But if his behaviour is more to do with him feeling like a spare part - you may need to help him feel more included even if that is the last thing you feel like doing right now.