I don't own Harry Potter, I just thought that this would be a funny idea.
A young man had just arrived at King's Cross Station. It was his third year at Hogwarts and this time, for the first time, his parents allowed him to come alone.
As he pushed his trolly towards platform 9 3/4. Unfortunately there was a slight problem. A young couple were standing in front of the pillar between platforms 9 and 10. Since they weren't going through it probably meant that they were muggles. He was starting to worry, if he couldn't get them to move he was going to miss the train.
He was running out of time so, without any other option, he walked up to them. "Um, excuse me," They glanced at him, 'What was a normal muggle thing to say?' he thought to himself. "Could you, um..." "Get lost kid." said the man. He turned back to his girlfriend and started to ignore him.
The student go away, he needed them to go away. "Hey, there's a spider!" he shouted in hoped that it would scare them away. He only succeeded in startling them a little but, when they realized it was a trick, the man started betting mad at him.
He pushed the student's shoulder and said, "You think you're funny, punk?" The student closed his eyes and waited for something to happen. "What do you think you're doing?" asked a stern authoritative voice. The Hogwarts student opened his eyes and turned to see a sharp looking man in a suit. "You two," he pointed at the couple, "get out of here before I call security." "And you," he grabbed the student's shoulder and waited for the couple to leave.
Before he could thank the man he said, "If you don't go now you'll miss you're train. There isn't a second train." The student nodded and thanked him.