Haha, I see. ^-^ Thanks for telling me! I do it all the time, though, so it might be a bit different in my case... But I'm not really all that worried about. It just hurts a bit once it happens >.< But, yeah, thanks!
Don't worry... you're not the only one to have walked into doors before... one time i went to a retail store, and i thought the door slid to the left, instead it was automatic swing open. I walked right into it as it swung towards me... so yeah, don't worry, yuo're not the only... ^_^