From The Los Angeles Times:
But down in Florida, Michelle Obama's speech apparently drove one as-yet-unidentified viewer a little crazy. Police in Pasco near Tampa Bay said a man exited his RV and began yelling and shooting his rifle into the air, apparently not celebrating. When police arrived and later the SWAT team, the man ducked back inside and held them at bay for six hours, despite tear gas canisters.
According to Sheriff spokesman Kevin Doll, when the man finally surrendered at dawn, he said the cause of his unhappiness was Michelle Obama's speech. He was taken for psychological evaluation.
Well, I've always thought racism was a mental illness ...