he's a few years older, but if she was at johns hopkins, his general surgical residency would have been winding down as hers was starting up. they could have worked together for a year or two and then not run into each other until she started at ppmc, if you want to go into things with a little professional history between them. since he's a trauma guy, he's in and out of the e.r. a lot besides lurking the surgical floors, but they'd possibly have some cross-over patients, too, since he deals with a lot of cardiothoracic emergencies/injuries. he can always use friends outside of work. he's her opposite about physical activity, though. he hits the gym as often as his schedule allows and a lot of his interests are sports/active lifestyle-related. possibly a long-running joke between them along the lines of ...so this is the week you join the gym, yes?