Well...
People say that crested ducks are prone to being sick more than other ducks, and for premature death. They site this based on them being pre-disposed to having seizures.
And people and animals that have seizures do tend to look sleepy and slow.
It may be that you are going through this, but also I can't for sure say that I've gone through this. I didn't really go for having crested ducks, after reading about this problem that they have. (The research and reading on this didn't say if it was night seizures or if they'd have them openly during the day, at least that I saw.)
But that's what people have said about them, and its starting to look like it may be pretty common.
And this is also why sometimes when people breed ducks they will leave the crested ducks out of the genetic pool. (I'm not saying you have to do that. And some people really like these 'affro' ducks.
I wonder if Colon Kapernick likes crested ducks? He kind of looks like a 'crested' human. And maybe if he has this seizure problem it may explain some of his acting out behavior.