Preventing Turtling by stretching

Correct me if I’m wrong, but people advocate the prevention of turtling throughout the day by stretching?

But doesn’t this mean that we are stretching WITHOUT a warm-up, which could be dangerous?

I’ve also heard people mention that they “stretch randomly throughout the day” for length gains. Again, since this isn’t in the shower/with a towel, isn’t it dangerous? Or maybe light stretching is okay without a warm-up.

“Piss pulls” are just light stretches to keep things hanging. A good thing to do. :)