Ok. So Z is really a nice guy. I mean, usually. There are those times when he hauls off and hits his brother. Sometimes there is some emotional warfare ("B... I have your doggie, and he told me he doesn't like you any more").
But, by and large my son is charming, and bright, and personable.
That said. When Z said that he wanted to be Harry Potter for Halloween, I said no.
Instead, I said you can be Draco Malfoy, your brother can be Harry.
So, he practiced his sneer (shown below). I slicked back his blonde hair (he is naturally blonde - more than Tom Felton can say). I put him in a robe.
Now do you see why I said that?
Scary, isn't it?
Even young Harry Potter looks scared.