When I've found the time, which really isn't often lately, I've been taking a gander at the NCIS fic on Fanfiction.net. There are a lot of stories that have Gibbs only wringing his hands when no one sees, being protective when anyone is near and being gruff/supportive/nice when Tony's awake but hurt. I have to admit I'm currently hooked on that particular characterization of Gibbs.