I couldn't stand my mom filing her nails with an emery board. Never had a problem with nails on a chalkboard, though.
I don't like ice in my drink if it is already cold. To me, having a drink without ice gives you the choice to sip or gulp. Once you add ice, you are limited to sipping. So adding ice to an already-cold drink gives no benefit, but limits your freedom to drink as you will.
My husband drives me nuts at dinner time. Everything is ready, and we sit down, but then he always finds a gazillion reasons to get up and adjust something in the environment. Often in another room. Up and down and up and down, and it makes me so tense while I am trying to eat. I tried the method of asking him what he was doing, so that in the future I could do it for him in advance of dinner and he wouldn't have to get up. He wouldn't tell me because he doesn't want to make more work for me! I couldn't get him to understand that I would rather do those little tasks then have my dinner ruined. Now, when he gets up, I just stop trying to eat and wait until he is fully settled before I start again.
P.S. He does that with the bed and bedroom at bed time. I can't go to sleep before he comes in, because he will start rearranging everything. If I am tired and want to go to sleep and he doesn't want to, I will ask him to come in and adjust things so he won't have to later. I have been getting the hang of how he likes things, so these days it is easier.
I think he is more high maintenance than me because he grew up in a household where he had more control over his immediate environment and nobody messing with it. He had his own room and nobody interfered with it. I, on the other hand, grew up in chaos. Nothing that was mine was sacred, and people were always messing with my room and stuff. I am used to things never being the way i left them or the way i wanted them. It just doesn't bother me to eat or sleep in a disordered place.
But it DOES bother me to eat and sleep with a lot of movement going on. Because of living in such chaos as a child, I used to have nightmares that I was sick in bed and there were people jumping on it.