I really don't want to leave the room when I fart.
Why don't you want to leave?
I just don't feel like it, too much effort.
If you're going to fart, make sure other people can not hear it or smell it. It's quite rude to fart in the presence of other people because your fart stinks and it is loud.
Fuck off, I don't care.
You should care, farting with other people in the room is just rude. You should excuse yourself and leave before doing it.