I want to say that an individual [has a chip on their shoulder](https://english.stackexchange.com/questions/93340/what-meaning-chip-on-their-shoulder-takes-here), but a month ago, they did not.  

 - Did they "**raise** a chip on their shoulder", as might be inferred from the first cited history of the custom in [Wikipedia](http://en.wikipedia.org/wiki/Chip_on_shoulder)?  
 - Did they "**place** a chip on their shoulder" as might be inferred from the North American fighting custom (Ibid.)?  
 - Did they **grow** a chip on their shoulder?  

What verb can I use to explain the change?  Can you cite any examples of this in literature or professionally-edited media (not personal blogs, but articles, books, TV, etc)?