Credit goes to JKR and '.But Friends Make Secrets'
The four marauders were walking down to breakfast. It was a dreary day and they were still very tired.
Suddenly Remus lost his footing and fell down the whole flight of stairs, and landed in a crumpled heap at the bottom. The others roared with laughter as Remus picked himself, red-faced.
"I did not just fall over," he huffed, causing them to laugh even harder
After Divination, they were climbing down the ladder. Remus missed a rung and slid a little way down. Luckily for him, James and Sirius didn't notice.
"I did not just fall," he said, pompously and the other boys exchanged amused looks,
"Moony, you do realise that by saying 'I did not just fall,' you just drew attention to the fact that you fell!" Sirius pointed out, and James chuckled
"Hmph."
As they clambered in through the portrait hole that evening, Remus suddenly tripped and fell through.
"I did not just fall over," he said, stupidly.
"Moonypants, how many times do we have to tell you?" Peter shook his head, "You're so insane!" At these words, James and Sirius looked at each other excitedly. They ran up to the dormitory and raced to write the words on the list.
3) Repeatedly falling over and then drawing attention to yourself by saying "I did not just fall over!"
Remus just sat on the floor, looking very defeated.