I get the point of the movie. It makes me appreciate even more the simple things in life up to the point when he set the fire alarm off and there was no response, not even a check especially it's the penthouse. I was thinking why he didn't try to set the fire alarm off at the first place or at least after one week. Just like another viewer mentioned he chose the hard way. He could have tried to poke through the wooden door to make a little hole that is big enough to push through a rolled up piece of paper to alert the cleaning girl.