Business was slow Monday morning at the lemonade stand in the hot parking lot next to St. Mark Lutheran Church on the west side of Davenport. "It's not usually like this," said Ahrianna Fuller, called Ahri by family and friends. "Our busy days have been Mondays, Tuesdays and Wednesdays so far. "Maybe it's the heat. I don't know." Ahri is 13 years old, set to start seventh grade at Frank L. Smart Middle School, and loves science.