Here's a Judging Amy Round Robin. I'm not sure if I'm doing this correctly so correct me if I'm wrong CK.
If I understand correctly each of us writes a paragraph and we take turns. It's like the 300 word story except instead of only writing one word at a time we write a paragraph. The next person picks up where the person above left off with a new paragraph.
Vincent entered the Gray house after a long absence. No one knew he was coming. He decided to surprise them. He stopped in mid step when he saw Amy was gripping the vacuum cleaner as if her life depended on it. He looked around to see the house looked very clean. He wondered if she was upset about something and was perhaps taking her frustration out in the form of cleaning. He came up behind her and tapped her on the shoulder. Not having heard Vincent come in over the noise of the vacuum Amy whirled around and looked frightened. "Sorry, Amy. I didn't mean to scare you."