Size is no guarantee of power.

Fred and George turned to each other and said together, 'Wow, we're identical!'

'I dunno though, I think I'm still better looking,' said Fred, examining his reflection in the kettle.

Well, we find we appreciate you more and more, Mum, now we're washing our own socks

So," said Wood, at long last, jerking Harry from a wistful fantasy about what he could be eating for breakfast at this very moment up at the castle, "is that clear? Any questions?"
"I've got a question, Oliver," said George, who had woken with a start. "Why couldn't you have told us yesterday when we were awake?

What do we want to be prefects for?” said George, looking revolted at the very idea. “It’d take all the fun out of life.

You're a prefect? Oh Ronnie! That's everyone in the family!"
"What are Fred and I? Next door neighbors?