I bloody love you lot. Elsewhere on MN smacking gets "don't do it again, violence, hitting someone smaller than you blah blah blah I have never ever smacked my child". Noone will admit to it. Well they are bloody well lying.
I lose it with dd too. She is just so bloody difficult! I hate myself for losing it. I know there are other ways to deal with it. Sometimes, sometimes I think a smack can be a good effective punishment but onl when delivered as part of dealing with things calmly not when losing it, losing it causes fear, is irrational and lacks consistancy. However, I do lose it and I yell and someties swear and I say things I shouldn't and I smack. And then I have to listen to dd playing with her toys and telling them off and saying they will get a smacked bottom and I want to die.
However, yesterday I gave a sharp, effective smack. We were out at a National Trust place and dd threw a major strop after our picnic on the way to the den building activity. She screamed and screamed, I was hurting her, it was too hot, the hill was too steep, she didn't want to build a den, she wanted to build a den, she needed to wipe her nose, she wanted to go home, she didn't want to be outside she wanted to be inside, I was squashing her.....all at full volume. I ignored and dragged and I told her I wouldn't talk to her if she shoulted at me so each new complainted was screamed several times then the screaming stopped and he nicest most polite voice came out to say "mummy I don't want to be outside" to which I replied that I understood and then the screaming started again. Eventually though she didn't stop, she was getting violent, was squirming out of my grip and running away, she was ruining the day for poor ds1 so I gave her a smack. The tantrum was over within 30 seconds of that, she walked the rest of the way happily and spent a couple of hours den building very happily.
Kiwi you win on the disasterous night!
Bean the mind boggles, it really does. I hope you manage to talk some sense into your sister. FWIW though, I know it seems to you like totally the wrong thing to do and I know it pisses you off because you would love to spend the night with your mum and dad but are sensitive to their needs but she is like this, she has always been like this and your parents still love their daughter for all her flaws, they know what she is like and accept it. I don't think it is worth fighting over, a few subtle hints perhaps but I bet your parents would rather have her for the night and spend time with her even if it tires them than have her flit away and hardly see her or have all of you fighting.