The bag searches irratate me more than anything else.
My local airport seems to change the rules at random.
I have a folding key which seems to upset some x-ray handlers, but not others. I try and remember to unfold it- not always with success.
Other occasions it's all wires out, all wires in etc....
My daughter occasionally helps. She's not averse to putting a bottle of water in my bag when I'm not looking when we are out and about. I then pick the same bag up not realising, and security look at me like the donut that I feel.