I think most people feel like you do. I do sometimes as well.I'm too shy to use a trough. I go out of my way at work to go to the bathroom with big dividers. All the others have tiny dividers, and some people will talk to me while pissing (??).
How about taking to people while you poop?
I don't really mind having conversations while doing my business, it makes it more casual, like it should be.
That's why bar bathrooms are better, everyone makes funny comments and there are lots of conversations when everyone is drunk. People are less shy and their worries seem to disappear.