https://en.wikipedia.org/wiki/Plausible_deniability
https://www.urbandictionary.com/define.php?term=Schrodingers...
Here's what Musk actually does when he intends that gesture: https://www.reddit.com/r/centrist/comments/1i8ajx0/video_of_...
And here's what this one looked like: https://www.reddit.com/r/gifs/comments/1i6par1/elon_musk_vs_...
Go on - would you give the latter link's "my heart goes out to you" gesture publicly at, say, work, or outside a synagogue?