They usually are pretty tame and personable, just have your ducks in a row.
My first one I found out that they don't have fangs and look like zombies.
I did sell two million rounds to a local sheriffs office when I had my store front. They started a BIG investigation as to who I sold too.
After spending a bunch of money they found out it went to the County Law Enforcement Shooting match.
BATFE asked me why I didn't tell them in the first place. "I said you didn't ask!
"At least the word got out that they were in town"
I found that if they give you advise, take it.
Just like Hans Solo said "Don't Get Cocky Kid".