More, repetitive sounds. Alarms, buzzing, dripping. Animals in distress worry me too- obviously, it's meant to. Blackbirds in the garden have been going nuts almost all day recently- they probably have young I imagine and there are cats everywhere. Next doors dog suffered with separation anxiety and would go nuts if they left him. It was rarely for long to be fair but, it was horrible to listen to because you could sense how distressed he was.
I'm not usually around people enough for them to annoy me. It's more the other way around. I stayed with a group of people once. We were all working together. I stupidly had a raw carrot as part of my dinner and they all realised I was trying to chew it quietly. I'm more paranoid about annoying others.
It depends what mood I'm in really. Sometimes, I can block noises out. Other times, everything gets to me.
The worst was when I lived in a university town. Drunken arguments in the street at 4am almost every night is no fun when you need to get up for work. I wanted to record them and go over and play it back through a megaphone at 7am to them. See how much they like it.
