I always like to over-thank them. They fail to see the irony, and it's impossible for them to fight back. "Thank you SO much for all of the extra work you're doing. Keeping us safe is so important. I'm really happy to see you here checking ID's, officer. Really, thank you!"

It's incredibly snarky, but it goes right over their heads. Sarcasm isn't in the TSA "playbook."

I feel like you could have the grenade pin in your mouth, wearing an "Ask me about joining Al Qaeda today" sticker, and they'd be fumbling for the expiration date on your driver's license. That'll catch 'em!

At least it's better than the "stare downs." I haven't seen that in a while, and it was hilarious. I would just stare back. The unspoken message from me was, "You're looking particularly stupid right now, and you're not fooling anyone."