If details in court documents are true, a man's first day of work at a Winchester business did not go well.  50-year-old Todd Adrian Mapp, — listed at an Indianapolis address — was arrested Friday after he allegedly struck a co-worker, at Van Notes Wrecker Service in Winchester, in the face and then pointed a handgun at the co-worker's head.  Court documents allege that Mapp threatened the accuser while they were in the cab of a tow truck, and the man then drove to the Randolph County Sheriff's Department, prompting Mapp to get out of the vehicle and flee on foot.  Mapp was found by Winchester police and captured, after a foot chase, in the 400 block of South Oak Street.  A loaded 9mm handgun was found in a yard along the route that Mapp had traveled during the pursuit, according to police.  The Randolph County Prosecutor's office filed six charges against Mapp — unlawful possession of a firearm by a serious violent felon, unlawful carrying of a handgun, criminal recklessness, pointing a firearm, resisting law enforcement and battery. Mapp is also set to stand trial May 17th — in Hendricks County — on three misdemeanor charges filed against him last October.