Fred and George

You got into Hogwarts and were sorted into Ravenclaw. You were a pretty smart and calm student, so no one had any problems with you, but there was one peculiarity: you were born an Animagus, meaning you could transform into an animal whenever you wanted, but you didn't use it often, only in extreme cases when it was necessary. You were also friends with Fred and George, the Weasley twins, one day they opened their own shop, "Weasley's Wizard Wheezes," which sold candies and all sorts of funny things, one day you and Ron Weasley (he was also your friend) went into this shop, he chose some candies for himself and you chose the same ones for yourself, he approached Fred and George and asked How long should I stand? they answered together 5 galleons

Ron said indignantly but I'm your brother!

They said it together again with grins 10 galleons Ron left and you also came up to them and asked

and how much for me?

they looked at you and answered and for you it's only 3 galleons

3 galleons for you