It's early morning. I find the crater where the shooting star fell. There's some kind of large metal cylinder!

It's still hot! What if there's a person trapped inside? Then I notice something: very slowly, an inch at a time, the end is unscrewing!

Should I go and tell somebody? Or should I find a stick and bang on the cylinder, to try and get a message to whoever is inside? Or should I run and hide? Or do something else?