I had a very very difficult relationship with my mother who was supremely self-centred. She was hilariously self-centred. She did not really take interest in anything that didn't immediately affect her.

If I'm pushed I'd also have to admit I don't like people with allergies. They just annoy me. There seems to be something far too self-centred about it. 'No thanks I'm allergic.' Why not just say 'No thanks'? I wasn't asking for your medical history I was just passing around the nuts. Trying to be friendly that's all.