"Sister...Stuck!"

I don't know what got into Emily, but she just suddenly started wrestling Abigail. I think it took Abigail off guard too. She just yells, "Sister! Stuck!" She is very good at telling Mommy exactly what sister has done.
Emily calls Abigail "Sissy" unless Mommy is yelling for her, and then she tries to mimic me and yells, "ABBA!". She has also gotten into telling the cat to "shoo, shoo" and even tells that to people that she doesn't want to deal with. However, she is great at telling you, "Thank you" when you give her something. She also says "Welcome" when you say "thank you" to her. She is usually very polite.