I totally agree..... the offender needs to be eliminated from future family get together's until she can get her act straight and anger under control, and yet I can only do some thing when I am hosting the event..... as others keep allowing her to return even though they are tired of her ways just because she is family.

Sadly for me the only way to deal with this issue atm is for me to STOP going to family function that will have this particular niece at it and that will mean I (and my family) will miss out on extended family time...... but it needs to be done and I have to face it --I am usually the one in the family that has to make a stand when no one else will.