By now, it almost passes without comment that the president of the United States not only violates the ground rules of his own meetings with the press, but also misrepresents the substance of the conversation.

Also nearly past comment was the president’s remark, in a follow-on tweet, that the media were “very unpatriotic” for revealing “internal deliberations of our government” that could put people’s lives at risk. That’s almost funny considering that no media organ has revealed more such deliberations, with less regard for consequences, than his beloved WikiLeaks.

What can’t be ignored is presidential behavior that might best be described as incitement. Maybe Trump supposes that the worst he’s doing is inciting the people who come to his rallies to give reporters like CNN’s Jim Acosta the finger. And maybe he thinks that most journalists, with their relentless hostility to his personality and policies, richly deserve public scorn.

Yet for every 1,000 or so Trump supporters whose contempt for the press rises only as far as their middle fingers, a few will be people like my caller. Of that few, how many are ready to take the next fatal step? In the age of the active shooter, the number isn’t zero.

Should that happen — when that happens — and journalists are dead because some nut thinks he’s doing the president’s bidding against the fifth column that is the media, what will Trump’s supporters say? No, the president is not coyly urging his supporters to murder reporters, like Henry II trying to rid himself of a turbulent priest. But neither is he the child who played with a loaded gun and knew not what he did.

Donald Trump’s more sophisticated defenders have long since mastered the art of pretending that the only thing that matters with his presidency is what it does, not what he says. But not all of the president’s defenders are quite as sophisticated. Some of them didn’t get the memo about taking Trump seriously but not literally. A few hear the phrase “enemy of the people” and are prepared to take the words to their logical conclusion.

Is my caller one of them? I can’t say. But what should be clear is this: We are approaching a day when blood on the newsroom floor will be blood on the president’s hands.