What are some annoying habbits of other couples that irritates you the most?

When my niece or her hubby call the other one and tell them where they are and how long it will be before they get there. It's not just one call, they give a play by play ending with ok, I'm turning on our street now. I'm driving up now. I;m in the driveway now. It's sickening. Makes me want to slap the shit out of them. It's really him but she goes along.