Put on notice.

There is a distinct difference between a whistle-blower and horn-blower.  A whistle-blower, as current events has shown all too poignantly, has more to do with drawing attention to others, usually carrying with it negative connotations.  A horn-blower has to do with promoting one’s self, also with ironically negative connotations, at least with one’s peers. 

Except that there are a few finer nuances with blowing one’s own horn (ask me how I know this).  One category, in fact, has to do with a type self-promotion in the eyes of others that can be done in ways so subtle as to even disguise itself from the one actually doing it!  Another