Ginevra Weasley. Flight of stairs. Uncontrollable laughter.
It was a Saturday morning during summer break. Ginny Weasley rose around eight in the morning for breakfast. She got dress, brushed her teeth and hair, and everything else that was a part of her morning routine. When she was ready and everything done, she went down stairs to enjoy some of her mother's delicious cooking. As soon as she took two steps down she slipped and fell down the rest of the stairs. When she reached the bottom, she looked up to see her two twin brothers laughing uncontrollably at her.
Ginny got up angrily and pulled out her wand, "What'd you two do to the steps?" She asked through gritted teeth. Though her brothers could be just laughing at her falling, Ginny knew that wasn't the case, they were always pulling pranks on everyone.
When she pulled out her wand, the twin's faces grew grim and both their hands shot up. "It wasn't meant for you," Fred cried.
"It was meant for Ron," George added, equally terrified. Their sister was infamous for her bat-boggy hex, and they knew she wouldn't be afraid to use it on them.
"I repeat, what did you do?" Ginny asked again.
"We put a trick step in," Fred replied.
"Whenever someone steps on it-" George began.
"It falls and becomes a slope," Fred finished.
They didn't have time to say anything more though because Ginny bat-boggy hexed them both. As they got attacked by their boggies, Ginny walked into the kitchen with a grin on her face. She sat down and ate like nothing had happened.