For a month now I've not used a single stick of deodorant and while I know that I smell bad people keep insisting that I don't which means that I'll continue to be lazy and not go pick up some at the store.
Why do you think they're avoiding telling you?
They feel compelled to lie to spare my feelings
Well, that's understandable of them seeing as people should generally try and be considerate of others.  That being said, you should be considerate too and go buy some deodorant already.
Who's being close minded now?
You're the one who is doing something bad here, because you know that you stink and are using their kind lies as a way to keep from doing what is right. You should go buy some deodorant so that you don't smell anymore.