DOVER, Del. — NASCAR driver Kurt Busch had his turn on the witness stand Wednesday and testified that he repeatedly told his ex-girlfriend to leave his motorhome the night she claims he assaulted her. Testifying at a hearing on Patricia Driscoll's request for a no-contact order, Busch said she came uninvited and unannounced to his motorhome at Dover International Speedway in September, a week after he broke off their relationship. He said she demanded that he tell her son to his face that their relationship was over.