He will sometimes tag the person he does not like in photos online with an insulting nickname, speak in code with others around the person he dislikes and will sometimes use status messages online that insult the disliked party ie "Saturday night and I'm goin out!... and get outta my way (insulting nickname)" or "HAPPY SNOW DAY! and get out of my way (insulting nickname)" The nickname will often be an OOOOOLD pop culture reference that only the disliked person will recognize.
This can go on, sometimes for YEARS after the disliked person has gotten fed up and started avoiding the Baron out of annoyance with his behavior.
The Baron will often be well liked among the people in his entourage but will begin acting douchey if one of them chooses to spend time with the disliked party.
ex 2. Disliked person : "Oh look, Baron Von Douchenstein is out with so and so and also wants Urkel to get out of his way... That show was on, what 20 years ago? Isn't he dead?"