Things Percy and Oliver did in their dormitory and swore to never ever tell anyone

A thunder cracked through the sky above Hogwarts and a lightning bolt illuminated the dorms in the Gryffindor towers shortly. Two boys laid awake, too scared to find sleep. "Oh, why have I been sorted into Gryffindor?" Percy mumbled into the darkness.
"Because we are bold and brave." Oliver answered but shivered so hard that his teeth were chattering.
Another thunder and flash made them shriek.
"I don't feel brave right now." Percy admitted.
Oliver left his bed to go to the redhead's. "Let's share tonight. We can start being brave tomorrow."
"Okay." Percy said and made space for Oliver.