[J.A.K.]

I say something 100% of the time. I basically decide whether I can take the guy or not when deciding how much to push it. Even if it's like 70% he'll kick my ass, I don't care because I lose it. I generally want to smash people's faces in on stuff like this, so if "You're kidding me, right? We are all waiting here and the end of the line is that way." gets a smartass response, I usually escalate it pretty quick.

So my demise will probably be getting shanked by the guy behind me when a new cashier opens and says "next in line please" and he darts.

I am not saying this to be badass. I'm avg or so in that department. It's just some young suit believing his time is more valuable than mine (others) pretty much makes me batshit loco. Regardless, it needs to be loud and embarrassing for anyone who does that [censored]. Maybe make up a Ballad of the Linebreaker song and sing it...mentioning the bluetooth of course.