Do you let your children scream when playing?

When we were kids our parents limited the amount of screaming we did. I understand kids scream when they play, but we were taught to scream when you're in trouble.

Every so often the kids next door scream blue murder and I look over the wall to check that they're not actually in trouble, just to find them playing.

I mean, the day will come where I don't check up on them and they might actually be in trouble.

So that made me wonder if you allow your kids to crazy scream when playing, or do you limit the screaming?

And I don't mean playful squeals or quick screams followed by chatter or laughter. I mean "someone is in my yard trying to murder me" screaming.