Exador's Guide to not being an idiot

We all assume that the young are idiots, so we're not surprised when they act like it. You see the 17-year old swerve all over the road, navigating a cellphone and the radio, and it's bothersome, but you think, 'dumb kid' and accept it.
Not when the idiot is in their 70's.

For God's sake, you should know better.

I'm in line at Publix to get a sub for lunch. There's one sub counter with two women behind it. This is a perfect application of the "bank" model for lining up. AKA the "Next available teller" model. Most people know this. We are all standing in our one line.
Sure enough, some old doofus comes up next to me, backing up to where the single line has fanned out into two people at the counter.
Since I go there several times a week, I know that the ladies run it like an assembly line, so I'm not too concerned. The first woman takes your order and halfway prepares it, then hands it over to the next lady to finish with toppings and wrap it up.
So woman #1 looks across "Old Doofus" and takes my order. I can see that Doofy is miffed, as he thinks he was next up in his "me-only" line. As woman #1 finishes her job, woman #2 is free, awaiting the handoff. Doofy goes around behind me and starts to give his order to woman #2, who then tells him that woman #1 will take his order.
Now he's all upset and huffing and puffing.

Doofy, your generation fought off the nazis. Get your head out of your ass.