What would you say is your greatest weakness?

I am the least subtle person in Iberia. I always blurt out what I think, and I'm really not good at all at reading people's faces to tell what they are thinking.

But that's not really important, is it?

As you are about to enter the house, a bright purple butterfly flits right across your path.

Red and blue and yellow ones are common, but purple ones are rare. They bring good luck, so the saying goes. And since it crossed your path, it can only be good luck for you. The butterfly will go and grant you a wish if you wish quickly–so what are you wishing for?