Can't Stop Watching

You know those times where you are so tired that everything is hilarious? Well I found this on the internet last night during one of those times. 

I watched it over and over and OVER.  The more you watch it, the funnier it gets:

At first its just funny because he doesn't see that the wall is glass and runs right through it

but then you notice that he ran right past a door that was already propped open for him

and finally you see that after he runs through the wall a big piece of the window falls on him and knocks him to the ground, like the window is getting its revenge.  I think that is my favorite part, even though the guy probably got hurt. Sorry for laughing at you dude, but thanks for being so funny!!