Jim Pittenger pulled up to Biker Jim’s Gourmet Dogs on his 10-year-old Harley Davidson last Tuesday, parked and walked through the front door. But instead of the usual exchange of greetings with employees, he said he felt “like a stranger in his own home.” Two weeks earlier, the 66-year-old announced on Facebook that he was stepping down from the hot dog business he started in 2005 because of a dispute with the man he sold it to.