Screaming is a way to release all that tension and adrenaline you build up in line. And it's fun.
I'm a screamer. But not in a 'Eeeeeeek' sort of way, it's more of a 'Wahoooo!'
And call me mean and dark, but I think there's nothing wrong with joking about death. I think everything can be and should be funny. At least, that's how I feel about it today...