what small habbits about your surrounding annoy you?

My mother always talks very soft to herself when she's on the ipad. and then all of the sudden she will be like '' what the hell is going on Now? '' when something goes wrong.

my dad always leaves the door open behind him.. ow god, the draft!

my sister is hardly home and when she is home she can do nothing but complain.. for the love of god cant you just stay away? and she has a hard time putting the lights off :l