Oh, and I will add this. Being disabled, I have been out of the workplace a while, but I was in it a WHILE too. Now, I don't mean this to offend....so take it as you will.
I have seen people matching your description all my life. Worried more about what others are doing. Worry about YOU and YOUR job, not anyone else's, especially a supervisor. Whenever I worked for somebody else, I went in, did my job my best and called it a day. The riff raff will usually always work itself out sooner or later. In short, mind your own business.
