What didn't you understand?
I was on a non-changeable ticket, didn't feel I could keep saying no "that date doesn't suit me" after I pushed it 3 days (erev chag, 2 days chag) already.

So I flew it, no problems, just some tension.

Yes, I did have a second passport (not Israeli). But I had both with me obviously, and had other signals like tephillin, kosher meal reservation, ... If someone was looking to cause trouble...