Shia LaBeouf -- Calls 911 -- There's a Strange Chick "In My House!"

Shia LaBeouf called 911 after coming face-to-face with an intruder at his L.A. home ... and you hear Shia scream at the strange woman, "Don't touch me!."LaBeouf -- who sounds relatively calm -- tells dispatchers a woman who'd been stalking him for…