In selecting sites for their offices, most lawyers go for weighty solemnity or tried-and-true antique charm — think vintage Heights Boulevard arts-and-crafts bungalow. Not appellate court lawyer Tim Hootman. His riotously colored assemblage of old rail cars — a caboose, a boxcar and an old Pullman sleeper — on the corner of Pease and Dowling is just plain fun. You might think Hootman is a train fanatic, but he has long protested that he is not. Instead, he's just a guy who likes to play with architecture, and this woebegone fringe of downtown is much the better for it.