(A/N- Just a little something I thought of while I was giving my brother a band-aid. The nugget scraped his hand in a pool. Boys. Can't live with them, can't reproduce without them.)
Disclaimer: I'm pretty sure J.K. Rowling could've come up with something more eloquent than "boo-boo."
Band-aid
"Granger, what is that?"
"Hm? This? Oh, it's a band-aid."
"A band-aid?"
"Yes, a band-aid, Malfoy. You use it to cover up boo-boos."
"Boo-boos? How old are you?"
"Old enough to use the word 'boo-boos.'"
"Why not just heal them with your wand?"
"I like band-aids. They remind me of how my mum used to kiss my boo-boos to make them better."
"Do they hurt?"
"What, boo-boos?"
"No, band-aids."
"No. Well, not until you take them off."