She was sniffling, so I told her to go get a tissue to blow her nose. Her three year-old brother, attempting to be helpful, pulled a tissue from the box and tried to hand it to her. She wanted nothing to do with it. She insisted that she get her own tissue from the box. He stood between her and the tissue box, still trying to give her the tissue he had pulled from the box, but purposely blocking her from getting a different one herself. She yelled. She screamed. She stomped her foot. I told her to just take the tissue from him. I told her he had been trying to be nice. She yelled. She screamed. She stomped her foot. Because she was now crying, more snot oozed from her nose. She really needed a tissue now, but she would rather have a face full of snot than accept a tissue given to her by her little brother.
I sent her to time out. She stood in the corner. She yelled. She screamed. she stomped her foot. She still did not have a tissue.
If you ever come to my house and notice snot stains on the wall, this would be an explanation.
[Please note that I said "an" explanation, not "the" explanation. I make this distinction because I cannot guarantee this story is the only reason there might be snot on the walls of my house. I have four kids.]