It was WWII. After being on the front lines of Europe for two months, Alfred was ready for his well-earned break. He and Arthur caught a boat to the supply base in southern England, and then boarded a train to London.
The train was extremely crowded, but they finally found a compartment with room. Arthur collapsed into two of the seats, taking a swig from a silver flask as he did so. Al didn't blame him; he'd been fighting the war practically single-handed up until now. This only reminded him of how tired he was as well, and he looked around for a seat.
The compartment held four total. Artie was using two. And the others were occupied by a stuffy-looking old lady and her dog. Putting on his Hero Smile®, he posed and asked, "Can I sit here?"
The lady jerked back as if struck, and sniffed haughtily. "You Americans are so rude. Can't you see my Tilly is sitting here?"
Miffed, Alfred turned around and tried moving Arthur off one of the seats, but the nation was out cold from sheer exhaustion. He whimpered when America tried shaking him awake, and so he gave up and turned back to the woman.
"Look lady, I love dogs too," America ran a hand through his hair. "I'd be happy to hold your puppy if I could just sit down."
"You Americans are not only rude, you are arrogant to boot," the woman wrinkled her nose in disgust.
Alfred leaned against the wall for a while, but eventually his legs started to ache with exhaustion. "Please. I've been fighting those Germans for months without stop. Could I please just sit here?" his knees trembled, but he remained upright.
"So. Americans are not only rude and arrogant, they're also obnoxious," was the reply.
Alfred lost it. With a war cry, he seized the woman's dog and hurled it bodily out the window, plopping himself down contentedly on the newly-freed seat. The woman was speechless.
"Alfred."
Shit. Apparently he'd woken Arthur. The stocky nation looked at him with bleary green eyes.
"I dunno whether to agree with her or not. I know you Americans do a lot of things wrong. You drive on the wrong side of the road, you hold your fork with the wrong hand, and now you've thrown the wrong bloody bitch out the window."
A/N: …support the troops! I tried to go for some subtle USxUK in this, but I'm not sure if it's noticeable.