First off: A retired E-9 with 27 years of armed forces experience is receiving quite a healthy pension. Especially considering how nepotism is wide spread with government jobs - He's not poor.
Secondly: Using "Veteran preference" for acting like a complete d-bag is not aligned to the values he should have learned while serving.
I spent 11 years (mostly in Germany) in Active duty Army to include being stationed at Fort Bragg. D-Bags like this is why Fayetteville, NC which fancies itself to be "America's Hometown" embodies a culture of misery, a-holeness, and makeup a collective body of poo.