Questioning Ranma's Honor

It's been bothering me that a lot of fics start using honor to either fix everything in Ranma's life or mess it up. Now, it's been a while since I've done an in-depth read of the manga, and my memory is fuzzy, so I'd like to ask for everyone's help in determining just how honorable Ranma is.
To me, Ranma isn't all that bound by honor-- at least, not to the degree that most fics portray. He seems to mostly hold some base lines of human decency. They're not your average common sense lines of human decency, but they're his baselines. I don't think he'd ever commit ritual suicide, even if Nodoka were to decide he wasn't manly enough, and I'm pretty sure he'd go back on a promise if he was pressed hard enough. These are just my general impressions of Ranma though.
Anyways, thoughts, citations, and all that.
To me, Ranma isn't all that bound by honor-- at least, not to the degree that most fics portray. He seems to mostly hold some base lines of human decency. They're not your average common sense lines of human decency, but they're his baselines. I don't think he'd ever commit ritual suicide, even if Nodoka were to decide he wasn't manly enough, and I'm pretty sure he'd go back on a promise if he was pressed hard enough. These are just my general impressions of Ranma though.
Anyways, thoughts, citations, and all that.