Jerry Seinfeld has been everywhere, talking to just about everyone, on late-night shows and morning ones, on podcasts and in newspapers — proving that when you move around a minefield, you’re bound to step on mines.

In the past two weeks, to promote his directorial debut “Unfrosted,” the 70-year-old comedian hit the media circuit with the vigor of a much younger man and the cantankerousness that fits his age.