A guy went to Tuscaloosa and picked up one of those new Mercedes. He was testing it out in the parking lot, turned on the radio and nothing happened.
Furious, he demanded to see the sales manager, and told him "When I buy a $50,000 car I expect the dang radio to work."
The sales manager explained to him that the radio had been programmed to his voice and all he had to do was tell the radio what he wanted to hear.
He got back into the car and said "Country music," and old Willie Nelson started singing. "Rock and roll," he exclaimed, and immediately Elvis started crooning. "Easy listening," he remarked, and all at once it sounded like he was in an elevator. He was relaxed, driving up I-59 to Birmingham, and listening to smooth sounds.
Then a pickup truck with two good ole boys almost ran him off the road. "Stupid rednecks!" he screamed. The radio immediately blurted out, "TOUCHdooooooooown AllaBAAAAAAAmaaa!!!!"
Stolen from: Hale McKay of It Occurred To Me