Realistically, I doubt it.
It's one of those things he does - stop and "spook' at the reporters, or groups of people in general. Kinda like what you do with babies or even the dog. Thinks it's funny. Of course, he isn't very effective, and people who haven't cared for Alzheimer's patients don't understand or read the shuffling gait and uncoordinated, devolving behavior. If they are unlucky enough, they will witness it first hand in somebody they care about some day.
Personally, the whole damned situation makes me ill.