I hate a lot of them, because they behave invasively. They make me feel so violated. Not all, though.
I remember being 13, walking into a charity shop to see if they had any cool clothes in there....and the old women started up about how I looked. One said 'Oooooo she's so thin! Look at the size of her little tummy!' (I'm very wiry, and I was wearing a short top that showed the long muscles in my belly.) I thought this was utterly inappropriate seeing as I didn't know her, threw her an angry look and turned in the opposite direction, she would not stop the behaviour. She started asking me loads of questions about what I ate, whether I had a large appetite, high metabolic rate, etc. I reacted by going silent and looking angry, to which my mother told me 'She asked if you eat a lot, answer her.'
Then there are those ones who feel free to give me lectures on how I must have psychological problems because of my facial piercings....ngh...
I hate how old people can act how they like, but if you stand up to them, apparently, that's called 'being rude'.
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'You're so cold, but you feel alive
Lay your hands on me, one last time' (Breaking Benjamin)