From The Federalist:

“A man has been fired from his job. He is upset. He hires you as his attorney. You are of the opinion he has an excellent case and file a complaint on his behalf. You later discover he possesses a permit to carry a firearm. He also has a so-called enhanced carry license. While his case is wending through the courts, your client goes to a public area outside his former workplace. He displays signs that say he has been wrongfully fired. The man has no history of criminal activity, violence, or threatening anyone.”

While I was forming an answer, many lawyers immediately said they would terminate the attorney-client relationship and contact law enforcement to report their client was potentially dangerous. The only reason offered was his firearm permits.