The supermarket checkout express lane can trigger some hot buttons for me.
One, of course, is the customer who plops 15 or 20 items on the conveyor belt when there’s a state 12 Items max limit. The poor clerk’s not going to bounce them. It’s simply the rudeness to the rest of us that bugs me.
Another is the use of credit cards, when permitted. It slows everything down.
The other day, though, there was a geezer who cut in front of a girl with a shopping cart. She was, from appearances, a quiet teen.
“Excuse me,” I said, “There’s a girl in front of you.”
“I can’t hear you,” he replied.
So I repeated the situation.
“Mind your own business,” he retorted.
We were all shocked.
“You can go in front of me,” she finally said.
Any suggestions for how to handle this?
He’s an embarrassment to all geezers, am I not mistaken?
I’m still miffed. Whatever happened to manners?
Jnana's Red Barn 
A curious twist to the expected outcome; you’d think that a teenager might act rashly and disrespectfully.. and yet, here (whoa!), it was the geezer who went off the rails. What lessons do we learn here…?
Rudeness has become an epidemic. I too speak up. Good for you for doing so, though it didn’t do much of anything. Keep speaking up no matter how many times nothing seems to happen. ❤
I agree! And either an innate kindness or shyness on the part of the teenager allowed him to “get away with it.” He must be a very unhappy man.