Would you call for a child to be picked up ?

[playfelt]

I wouldn't call mom for pick up because that gives the child too much future ammo - if I misbehave I can go home and spend time with mommy.

Blanket was a good choice and if that is what it takes then let it. Missing the odd snack for not settling yet won't hurt her either so make everything in the day contigent on behaviour improvement.

Are their privileges the older sister gets the younger one doesn't like a later bedtime or a cell phone or her own computer or TV in her room, etc. Is there something that has made this child resentful. She sounds more angry than anything else.

Letting mom know a timeline for improvement of behaviour though might make her take it seriously. If she figures she manages to get through her evenings and someone else deals with her all day then mom is happy. But if she knows that her daycare arrangement is in jeopardy she might do something. She needs to find out why child is angry.