Certainly. I’ll rewrite the story, focusing on improving grammar, punctuation, spelling, and clarity. Here’s the revised version:

Verna worked as a cashier at Savemoores Supermarket for 45 years. When she began her cashiering career, the store was a tiny convenience store. Today, it’s a 75,000-square-foot behemoth. It had three cashier lanes in 1974; now it has thirty-one.

On her last day, she worked her regular shift: 7 am – 3 pm. The bakery left a cake in the break room, along with a few balloons that had to stay in the store. Butch Moore hired her when she was 17. Butchie died in the nineties. His son, a fellow named Danny Moore, runs the store now. Both men were class ‘A’ assholes, as Verna will tell anyone who listens.

Butchie was an aggressive guy and pressed her to go on a date when she was still a teenager. She shot him down every time, and so began a 45-year grudge. Not once was Verna the employee of the month; skipped over 500 times. Eventually, she aged out of the creepy advances of Butchie and his son, but the grudge continued.

So Verna stopped trying to be a model employee. She was a daydreamer, always took an extra minute on her smoke breaks at the delivery dock, and had a tough time adapting to technology.

She’s generally positioned on lane 8, directly across from the employee of the month poster. Those faces on the employee of the month board staring her down all day, every day. The names changed, but the I-got-a-$50-gift-card-at-the-store-I-work-in smile never did.

Last day. Eight hours. Five smoke breaks. Four bathroom breaks and maybe three dozen big orders left to come through her lane. Her regulars piled one after another. Some she had weekly conversations with for 40 years. They knew her better than her co-workers, who treated her like she was being put out to pasture. “You don’t want to end up like old Verna,” they’d say. “It was a mistake to spend 45 years at a supermarket.”

When it was time for her final smoke break, she turned off the light at her lane and walked through the store, grabbing a pack of Oreos and a Coke before heading out the back door. She always paid for them, but not today.

Outside by the loading dock, she was greeted by Walt, the janitor loading cardboard boxes into a large compactor. “When your shift is finished, I’ll officially be the oldest employee,” he said.

“Heavy is the head that wears the crown,” Verna replied with her typical sarcastic tone. She ate her cookies and drank her Coke before lighting her cigarette.

Walt went back into the store, leaving Verna alone. She sat on the steps of the dock listening to the birds, but only momentarily, as Danny Moore joined her.

“Verna, I know it’s your last day and all, but you didn’t pay for those goodies,” he said.

“Are you gonna fire me?” Verna asked, taking an extra-long drag. “For my goodies?”

Danny took out his wallet from his back pocket and tried to hand her a five-dollar bill. “I’ll cover your snacks for you.”

“No, thanks. I don’t-” Before Verna could finish her insult, the ground beneath their feet shook. She thought “earthquake” and walked away from the building. Danny remained on the steps. It was clear after the first ten seconds of rumbling it was no earthquake. A massive hole opened, swallowing part of the parking lot.

There was a moment of quiet before a bus-sized, two-headed snake leapt out of the dark void. One head grabbed Danny in its mouth, lifting him off the ground. The other head did the same to Verna, lifting her into the air. Verna took her lit cigarette and put it out in the alien snake’s eye. It instantly released its grip on Verna, while the other head tightened its bite on Danny, who shouted in pain.

“I’ll save you, you weaselly sonuvabitch,” she called out, running to the trash compactor. The snake recovered quickly, pursuing Verna. She ran behind the compactor, waiting for it to put its head into the machine.

“Come after me, you dumb reptile,” Verna yelled, and the hungry snake put its empty-mouthed head into the compactor. Verna switched the machine on, and it instantly whirred to life, smashing down on the creature’s head, killing it.

The other head fell to the ground with Danny still in its mouth. With Verna’s help, they pried open the mouth, and Danny was freed.

“You okay, Mr. Moore?” Verna asked, lighting another cigarette to replace the one she used to blind the snake.

“Yeah,” Danny answered, checking his body for wounds. “I’m lifting the embargo and making you employee of the month.”

Verna, taking the longest drag possible while staring off at the sky, said, “I don’t want your fucking award.”

“Excuse me?” Danny said.

“You heard me.”

“Ma’am. Excuse me,” Danny said with a different voice. A female voice. “Excuse me. I’m in a hurry.”

When Verna looked down at him, his face was different too. He was a woman with a kid and a snake tattoo like the one they killed right below her neck.

They weren’t outside. Verna was standing at lane eight. The woman wanted to buy marshmallows and a can of soup.

“Must have been daydreaming,” Verna apologized, then turned off her light. “This lane is closed.”

She lit up a cigarette in the store. It dangled from her mouth as she sauntered over to the employee of the month poster. Verna ripped the poster from the wall and tossed it into the garbage as the doors opened to leave the building for the last time.