When they think they're being funny but they're really not and so I don't laugh and then they tell me off for not laughing and call me grumpy and carry on to just generally make me feel like shit.
When they pick on me for the teeniest tiniest things. Like one time I was told off for not saying hello to my step-dad. One time I didn't go out at the weekend so they said I would lose all my friends and that I'm anti-social. One time at school when it was a sort of meet-the-teacher thing, they stood there and laughed at my report infront of everybody.
When they give me a choice like "Do you want peas with your dinner?" and I say no but then they give me peas. Or when I'm going out and they say I need a jacket (even though I don't) and so I ignore them they get stressy with me...I'm 15 I know when to wear a jacket!!!
Or when they're drunk at parties and stuff. Not nice.
How old are your sisters/brothers? Or do you mean your parents? xD