Bieber banging into doors

Reports are in saying Bieber ran into a rotating door ... now I know how that feels coz I have done that once ... but walking intro a glass door is mint. Yes ... he walked into a glass door. Footage of his wobbly walk can be found

http://www.youtube.com/watch?v=rxb6kH84ofY&feature=youtube_gdata_player

and

http://www.youtube.com/watch?v=EQXG-qmhM08&feature=youtube_gdata_player

I wonder what he will walk into next.