Larry Yawn, an HISD spokesperson, and principal Don Carlisle said the officials were not aware of rumors about an upcoming fight. In spring 1991, as a result of the 1988 scuffle, Carlisle prohibited students from wearing Confederate States of America-related clothing at the May 17 prom. Five white students faced ejection when they were found with the clothing; some white students criticized the school, saying that it had a double standard as it allowed African-American students to wear Malcolm X-related clothing. The same students said that racial tensions had decreased from 1988 levels. Classroom fire, parking fees, magnet program, renovation, and Katrina refugees In January 1991 a fire destroyed two portable classrooms; police believed that the fire, extinguished in 20 minutes, was arson. The damages were estimated to be from $50,000 to $75,000. In September 1991 when Sharpstown increased its student parking fee from $40 to $50, some students threatened to walk out of school. The school administration wanted a magnet program to encourage area students to attend the school. By 1995 the school received a community service program. In 2001 the campus received a $13 million renovation, with a new air conditioning system. According to the Houston Independent School District October 2006 "For Your Information" newsletter, Sharpstown was one of four high schools that took the most Hurricane Katrina refugees. Performance and dropout rates A 2003 state audit of HISD's performance caused controversy. One of the district's most publicized accomplishments during the Rod Paige era was a dramatic reduction in dropout rates. When 16 secondary schools, including Sharpstown High School, were audited, it was found that most of the students who left those schools in 2000-2001 should have been counted as dropouts but were not. It was found that the administrators at Sharpstown deliberately changed the dropout rate. The Sharpstown controversy resulted in a recommendation to label the entire HISD as "unacceptable." Former Sharpstown assistant principal Robert Kimball asserts that HISD coerced administrators at many schools to lie on dropout rates. HISD asserts that the fraud is only contained to Sharpstown and that the false statistics at other schools were caused by confusion related to the state's system of tracking students who leave school. In 2007, a Johns Hopkins University study cited Sharpstown as a "dropout factory" where at least 40% of the entering freshman class does not make it to their senior year. During that year 41% of