LAPTOPS

JUST AN EASY ONE. I REALY DO NOT HAVE MUCH TO DO WITH LAPTOPS BUT A CUSTOMER BROUGHT ONE IN THE OTHER DAY, HE HAD JUST BEEN USING IT IN HIS CAR. DID NOT SWITCH IT OFF BUT CLOSED THE MONITOR DOWN TO BRING IT INSIDE. IT SAT ON THE BENCH FOR ABOUT 10 MINUTES WHEN I HEARD A HUMMING NOISE, SOUNDED LIKE THE HARD DRIVE WHIRING AROUND, ANYWAY WHEN I OPENED THE CASE THERE WAS NOTHING ON SCREEN, MOVED MOUSE AND PRESSED A FEW KEYS BUT NOTHING WOULD COME UP, SO HAD TO CLOSE IT DOWN BY HOLDING THE OFF SWITCH. MY QUERY IS DOES IT DO LAPTOPS ANY GOOD TO CLOSE THE SCREEN DOWN AND LEAVE IT RUNNING??? THANK YOU