Selfishness
My sister is such a selfish weirdo. It's pretty freaking annoying. She has this thing where she'll never use something and it just sits there so I use a little and she blows up. It's the same thing with food. Whenever we go out to eat at a restaruant she'll order something and my parents say that we have to finish all of it. I know myself and I know I probably can't finish it all by myself so I have no qualms sharing. She, however, will blow up if I want to try some of hers even though everyone knows there's no way she'll be able to finish. She refuses to share at all and then at the very end, when she can't finish it she'll ask me if I want some. What the fuck!?! So fucking annoying. I just told my mom about all this and she can't even say anything.